12 best deck waterproofings

Deck waterproofing is a process that involves applying specialized products to protect outdoor wooden surfaces, such as decks and patios, from water damage. This helps extend the life of the wood and maintain its appearance. Here are some important points to know about deck waterproofing:

  1. Purpose and Function: Deck waterproofing products create a barrier on the surface of the wood to prevent water from being absorbed. This is crucial in preventing issues like rot, decay, warping, and mold growth.

  2. Types of Waterproofing Products: There are various types of deck waterproofing products available, including stains, finishes, and sealers. Each type has its own characteristics and level of protection. Some are transparent, allowing the natural wood grain to show through, while others have color options.

  3. Stains: Deck stains are designed to enhance the natural beauty of the wood while providing protection against water and UV rays. They come in transparent, semi-transparent, and solid options, each offering a different level of opacity.

  4. Finishes: Deck finishes are usually clear or lightly pigmented coatings that provide a protective layer on the surface of the wood. They enhance the wood's appearance and provide water resistance.

  5. Sealers: Sealers are designed to penetrate the wood fibers and create a protective barrier from within. They are typically clear and do not alter the appearance of the wood. Sealers provide deep protection against moisture and are often used in conjunction with stains or finishes.

  6. Waterproofing vs. Water-Repellent: Waterproofing products create a complete barrier against water, while water-repellent products allow water to bead on the surface without being absorbed. The choice between the two depends on the level of protection needed.

  7. UV Protection: Many deck waterproofing products include UV inhibitors to protect the wood from the damaging effects of sunlight. UV protection helps prevent fading, discoloration, and deterioration of the wood's surface.

  8. Application and Coverage: Proper application is essential for the effectiveness of deck waterproofing.It's important to follow the manufacturer's instructions regarding surface preparation, drying times, and reapplication intervals. Coverage can vary depending on the type and brand of waterproofing product.

  9. Maintenance and Reapplication: Over time, the protective barrier created by the waterproofing product can wear down due to weather exposure and foot traffic. Regular maintenance, including cleaning and reapplication, is recommended to prolong the life of the deck.

  10. Environmental Considerations: When choosing a deck waterproofing product, consider environmental factors. Some products may be labeled as eco-friendly or low-VOC (volatile organic compound), which means they have fewer harmful chemicals.

Always consult the manufacturer's recommendations and guidelines when applying a deck waterproofing product, and be sure to follow any local regulations regarding outdoor wood treatments.

Below you can find our editor's choice of the best deck waterproofings on the market
  

Goberco Deck Drainage Waterproofing Trough -Z/50/16- 50' Roll,16'' Joist Spacing, Patented Self Flashing, Composite and Treated Wood Compatible.

Based on 88 reviews Check latest price

Product description

Z/50/16 - Each roll is 50' long x 17 1/4'' width (for 16'' joist spacing) x 30 mils thick - black astm heavy duty polyethylene - top side black, back side gray or black - Easy to install and affordable: goberco deck membrane + 4'' tape + downspout is between 1.5 - 2$/s.f. - U.S. patent # 9,453,338 z-folds allow this unique membrane to act as flashing + gutter between joists + funnel meaning less risk of leaks at ledger board and rim joist. - Save time and money: no need of extra flashing and funnel (simply use typical gutter downspout). - Compatible with treated wood, cedar or composite wood. - Get extra storage under the deck, protect deck structure, get water, insects (termites, ants...) off the deck. - Available for 5 years, sold thousands of roll across USA and Canada, 20 years warranty (see website for details).

  • On-top of joists installation - keep framing and under deck area dry. - Heavy Duty 30 mil thick black lldpe
  • Unique Patented Deck Drainage System on the market which can act as - self flashing (to reduce leaks at ledger board) + channel valley between joists + water evacuation funnel (to reduce leaks and cost).
  • Easy to install - 1. Staple on top of joists 2. Self sealing tape over joints 3. Screw downspouts to water evacuation holes.
  • Material cost is between $ 1.5 - $ 2/s.f. ( Goberco trough is about $1.2/s.f., a good self sealing deck tape is about $0.4/s.f. , typical plastic gutter + down spout + roofing screws are low cost ).

User questions & answers

Question: I have sister joists. the gap between them is nine inches . Can this product be used or modified to work
Answer: The thumb control is quite handy compared to a nozzle that doesn't have one. It controls the water pressure, from full to none and in between, which means you don't have to walk to the sillcock, also sometimes mistakenly called a spicket, to make such adjustments.However it is by no means child-proof. Anyone over the age of a few months can operate the control with ease. Indeed, it is TOO easy to operate. Merely dropping the nozzle onto your swarth of grass can open or close the pressure valve, a little or all the way depending on the force and angle vector at the moment of landing. Your curious dog can operate it. A determined hive of thirsty bees can coordinate to operate it. The pointless finger guard would have better located around the pressure valve.
Question: What is material? Plastic, vinyl or something else
Answer: I have only had it for a few months. I can say that, for now, I like it better than the two Gilmour thumb-control nozzles I have had for a year: https://www.amazon.com/gp/product/B00EVINW9I/ref=oh_aui_search_detailpage?ie=UTF8&psc=1 The Gilmours aren't leaking yet, but the thumb controls are harder to adjust than they were when they were new. The Orbit thumb control is easier to use than the Gilmour, even when the Gilmour was new. I liked the Orbit enough to buy a second one, and I may get a third.
Question: How do you account for accumulation of leaves, pine needles & helicopters falling from trees
Answer: BebeBouche, yes this nozzle is lead-free.
Question: how do you deal with water at the fashia end of the joist run? I do not see down spouts listed
Answer: attach. turn on water. move levers. then you will know.

THOMPSONS WATERSEAL TH.042851-16 Semi-Transparent Waterproofing Stain, Woodland Cedar

Thompson's Water Seal

Based on 514 reviews Check latest price

Product description

Thompson's WaterSeal Waterproofing Stain provides complete outdoor wood protection. It waterproofs long after the initial water beading is gone. Use on decks and fences, outdoor furniture and exterior wood. Shows medium wood grain and medium color. 1-coat protects 4 years on decks or 6 years on fences and siding. Applies to freshly cleaned damp or dry wood. Prevents water damage. Advanced polymers provide fade resistant color. Coating resists mildew and UV damage.

  • Prevents Water Damage
  • Advanced Polymers Provide Fade Resistant Color
  • Coating Resists Mildew and UV Damage
  • Applies to Freshly Cleaned Damp or Dry Wood
  • Exceeds Industry Standard ASTM D-4446 for Waterproofing Wood

User questions & answers

Question: The listing says semi-transparent, but the picture says transparent, which version is this
Answer: Semi
Question: Is this a gallon container of the product
Answer: Yes this is a one gallon of Thompson water seal
Question: what clear seal do you recommend to use on 12year old pressure treated planks
Answer: I've used Thompson's water-based semi-transparent stain/sealer 3 times now for my 15 year-old pressure-treated deck and it has always done a great job of covering and protecting the wood. It doesn't really last the 4 years they claim, but still very good. They also make an oil-based clear sealer and I use that on my cedar pergola, also very good stuff but it's hard to work with because it doesn't cleanup with water. As an alternative to the oil-base they have an all-purpose water-based clear sealer for wood and masonry. I would use that on my pergola if it was made of pressure treated wood, but with cedar I really want a penetrating oil. So for your pressure treated deck, I would recommend the water-based clear sealer. Given how well the semi-transparent stain has worked for me, I would expect good results with the clear as well. You will certainly want to clean the wood first if you expect to brighten the gray appearance of aged wood. I spray oxygen bleach on the wood first and then scrub with a stiff brush and rinse before sealing.
Question: Would this product work well on untreated Adirondack furniture
Answer: Yes, I think it would be suitable. I have only used it on my deck however. Good protection in a wet climate. Rub it down well after it dries to keep the color from getting on clothes though if you're using a color stain.

Product features

The Thompson's Company has earned a well-deserved reputation as identifying industry trends and emerging technologies.

In the early 1920’s, polymer chemist Edward Addis Thompson developed a formula that protected buildings from exterior water damage. His discovery became known as Thompson's WaterSeal Clear Multi-Surface Waterproofer and initially was used by architectural and construction firms for concrete applications.

THOMPSONS WATERSEAL TH.041811-16 Transparent Waterproofing Stain, Harvest Gold

Thompson's Water Seal

Based on 857 reviews Check latest price

Product description

Exterior wood stain and wood protector that allows some natural wood grain and texture to show, while adding subtle color to the surface. Available in several deck stain colors.

  • Prevents Water Damage
  • Advanced Polymers Provide Fade Resistant Color
  • Coating Resists Mildew and UV Damage
  • Applies to Freshly Cleaned Damp or Dry Wood
  • Exceeds Industry Standard ASTM D-4446 for Waterproofing Wood

User questions & answers

Question: Can this product be applied with a pump sprayer
Answer: The body is plastic and the hose fittings are brass do I would say it is.
Question: What size is this product
Answer: I just eyeballed it and I'm not saying it's "full flow", they do seem a bit restricted. But they aren't small holes. I would venture to say they are close to full size.
Question: Can this be applied by roller please and thanks
Answer: Both ends were capped on mine, but I have not had a reason to attempt removing them.
Question: when should i repeate? 1 year 2year
Answer: It is certified lead free. Information on BPA and phthalate content is unknown. My source: I called Orbit and spoke to a representative. Hard to find one that meets your desired criteria...

Product features

The Thompson's Company has earned a well-deserved reputation as identifying industry trends and emerging technologies.

In the early 1920’s, polymer chemist Edward Addis Thompson developed a formula that protected buildings from exterior water damage. His discovery became known as Thompson's WaterSeal Clear Multi-Surface Waterproofer and initially was used by architectural and construction firms for concrete applications.

Olympic Stain Maximum Deck Stain, Clear, 1-Gallon

PPG

Based on 584 reviews Check latest price

Product description

Olympic maximum Clear waterproofing sealant is olympic station's best sealant. In fact, it has been rated the #1 Clear sealant for three years in a row by a leading consumer magazine. Why does olympic maximum rate so highly well, it delivers enhanced waterproofing and sunblock UV defense to strengthen, protect, and condition wood fibers, ensuring the wood's natural beauty lasts. Olympic maximum with weather-ready application is also specifically formulated to allow you to stain when you want, not when the weather dictates all while getting the same excellent results. Weather-ready application provides four great benefits: you can clean and stain your wood on the same day - even after rain.The stain is rain-ready after just 8 hours.the stain can be applied when air and surface temperatures are as low as 35 Degrees Fahrenheit.If the surface is too hot to touch, lightly mist the surface before application of the stain. Olympic - America's most trusted brand since 1938. Olympic - exterior wood stain for decks & more.

  • Enhanced waterproofing protection to help make sure your wood is protected from cracking due to water

User questions & answers

Question: Title says 3 gl, options offers 5 gl. i click on 5 gl to the order but the order form shows 3 gl. so am i getting the 3 or 5 gl
Answer: I have the same problem. Did you ever find a replacement strainer that is easy to get out through the rack?
Question: Can this product be used in a paint sprayer
Answer: Outer diameter is 4.5", inner diameter 3". It fits my kitchen sink perfectly.
Question: Where can I get the clear in 5 gallon buckets? I love my new fence and don't want to apply any stain color
Answer: Yes, it works quite well for me. I have a double sink, so I bought two. I keep one on the garbage disposal side at all times to prevent silverware (etc) from falling in. This works very well in my kitchen.
Question: I am looking for "olympic natural look protector plus sealant ", for my red wood deck. is this the same one
Answer: There are two different models you must choose from. One is only a strainer, while the other is both a strainer and a stopper. Just pick the one that reads 'strainer stopper' and you'll be fine!

Product features

Stain + Sealant in One

Stain + Sealant in One protects and beautifies in one step.

Weather-Ready Application

Allows greater opportunities for staining when it may rain or when the weather may be too hot or cold.

Enhanced waterproofing protection

Helps make sure your wood is protected from cracking due to water.

Advanced SunBlock UV

Helps protects your wood from dangerous UV rays that can wear down the coating.

How much stain do you need to buy?

One gallon of wood stain covers approximately 250-350 square feed, which is enough for a small to medium deck. It should also cover both sides of a 25 foot long fence or a couple pieces of furniture.

Two Gallons

Two gallons of wood stain cover approximately 600 square feed, which should be more than enough for the standard deck project or a 50 foot long fence.

Three or more Gallons

Three or more gallons of wood stain will most likely only be needed on large projects, as they should cover over 850 square feed.

Note: Solid Color Stain requires two coats. You should effectively double your gallons purchased when using a solid.

How To Stain Your Wood Deck In 3 Easy Steps

Sweep debris from deck and then use a product such as Olympic Premium Deck Cleaner to penetrate the wood and lift dirt to the surface to be cleaned, as well as clean stains caused by mildew, dirt, algae and mold. Allow surface to dry.

STEP 2

Tape off any surfaces you don’t want stained. Also, avoid staining in direct sunlight or on hot surfaces because the stain will dry too fast to penetrate properly.

STEP 3

For clear, toner and semi-transparent stains, apply a thin coat with a high-quality brush, roller, paint pad, or spray. For solid stains, apply two thin coats with a brush, roller, or paint pad. To avoid lap marks, apply to a few boards at a time, keeping a wet edge.

For best results, backbrush into the surface to work finish into the wood and ensure the coating is even. Make sure to treat all areas of the wood, including joints, edges and ends.

You’re going to want to follow the directions on your stain container to determine if anything needs done after your final application.

Olympic Wood Stains: A reputation as durable as our products

Olympic Wood Stains has provided exceptional protection and durability for all wood types, applications and budgets since 1938.

Nothing protects and beautifies your wood like Olympic Exterior Stain. Trust the natural beauty of your wood to Olympic Stains.

Olympic Paints and Stains guarantees satisfaction with the application and performance properties of this product when applied to a properly prepared surface in accordance with label directions. This guarantee is limited to your choice of product replacement or refund of the purchase price. See product label for more details.

SEAL-ONCE NANO+POLY Penetrating Wood Sealer with Polyurethane - 1 Gallon. Water-based, Low-VOC, waterproofer & stain for decks, fences & log homes.

SEAL-ONCE

Based on 160 reviews Check latest price
  • Water-based sealer with advanced penetrating nanotechnology & added strength of Polyurethane. This premium wood sealer performs like an Oil-based product, without any noxious solvents or toxic chemicals.
  • Great investment to enhance and extend the natural life of wood. Protects against water damage for up to 10 years on vertical surfaces & 6 years on horizontal.
  • Ultra Low-VOC wood sealer safe for people, pets, plants or marine life. Easy to apply with soap & water clean-up. Save time with wet on damp application.
  • Prevents warping, cupping, wood rot, mold, mildew, staining, decay & will not peel like many topical sealers that only form a top-coat.
  • When used as a wood stain creates a UV barrier to prevent fading. Rich color palette available in 11 different color tints. Clear formula allows wood to turn gray naturally

User questions & answers

Question: What color is this sealer? On the can it says clear but in the description it says white
Answer: It goes on white dries to perfect wet look clear
Question: Can this be used on raised beds? Both inside and outside of the bed
Answer: You may use this product, however, the inside of the box will not be protected as it would be against soil.
Question: Can I use this on the inside of a terrarium? I'm making one out of wood, and I need the inside to be water proof, as it will be very humid
Answer: We would not recommend our products for this application. It will be too much constant contact with moistures in an enclosed area.
Question: Why shouldn't the product be used in doors? What would you recommend on doors
Answer: Seal-Once products are completely penetrating and are non film forming. The door will still look like raw wood after it is applied. You cannot apply stain, paint ,polyurethane, or varnish over Seal-Once products. Also, Seal-Once products must be applied to raw wood.

Product features

The Science of SEAL-ONCE and Innovative Use of Nanotechnology in Wood Finishes & Stains

Unlike many top-coat sealers sold today that trap moisture below the surface, NANO+POLY creates a flexible, breathable barrier which allows water vapor to escape. This key feature helps prevent damage to wood caused by water intrusion, such as: wood rot, decay, mold & mildew growth, cracking & splitting. Typical wood sealers form a barrier on the surface of the wood, trapping moisture below the surface. As the water evaporates, it causes the surface coating and the substrate to crack & peel, leaving a broken surface that requires continued maintenance and is susceptible to additional damage. SEAL-ONCE uses cutting-edge, nano-particle technology to allow wood to breath and help prevent water vapor damage by protecting wood from the inside out.

Water-based Product that Will Not Harm People, Pets, Plants, Livestock or Marine Life.

SEAL-ONCE products are ultra-low VOC, low odor, non-toxic, non-flammable and non-ozone depleting. They are safer for the environment and do not contain nitrates, phosphorous compounds or heavy metals like many Oil-based sealers & stains on the market today.

Quick & Easy Application

Apply first coat with a synthetic brush; pump-up garden sprayer; air-assisted; and/or airless sprayer. Use 15-17 tip and medium to coarse spray pattern. When spraying, always back brush for best results. Second coat can be applied once first coat has penetrated but is still damp. Second coat must be applied within one hour of applying first coat. For best results, apply in the shade and out of direct sunlight.

Available in 11 Tinted Wood Stain Colors

NANO+POLY can be tinted for use as wood stain in any of the 11 color tints available: Clear, Light Brown, Natural, Brown, Mahogany, Redwood, Bronze Cedar, Cedar, Black, Battleship Gray, Shale Gray & Cape Cod Gray. The tints are sold separately and when mixed with Clear, the tinted formula provides additional UV protection from harmful sun rays.

Surface Preparation & Coverage

Approximate coverage: 250-350 sq. ft./gallon per coat. Actual coverage will vary due to the porosity of the surface. All surfaces should be cleaned with SEAL-ONCE All Wood Cleaner before sealing for best penetration and performance. Remove all old coatings, dust, debris and loose material. Remove oil, grease, algae, grime, mill glaze and mold and mildew stains with appropriate cleaners.

THOMPSONS WATERSEAL 21802 VOC Wood Protector, 1.2-Gallon

Thompson's Water Seal

Based on 464 reviews Check latest price

Product description

1. 2 gallon, VOC clear wood protector, VOC Compliant, bonus container, for members in VOC restricted areas.

  • Item Weight: 9.65 lb
  • Country of Origin: China
  • Brand name: Thompson's Water Seal
  • Item Dimensions: 4.1"L x 6.6"W x 11.0"H

User questions & answers

Question: Could this be used on an exterior door to help with swelling from humidity? If so how to apply
Answer: I doubt it would help much. It stops water penetration but not humidity problems.
Question: Can the protector be applied on damp wood
Answer: I think not.
Question: Will this work on outdoor mahogany floor
Answer: Yes will protect it
Question: Hello, Do you have to re-apply every year
Answer: Probably. To tell, splash some water on the finish. If the water forms bubbles, the surface is OK for another season. However, after a year the surface may look dirty, and so you may want to clean it and re-seal it. Again, after you clean the surface, splash some water on it and see whether the previous seal still holds.

Goberco Under Deck Drainage System -Z/50/12-50’ Long Roll, for 12’’ Joist Spacing, 30 mil Thick Black Trough, Composite Decking and Wood Compatible.

Based on 12 reviews Check latest price

Product description

Z/50/12 - Each roll is 50' long x 13 1/4'' width (for 12'' joist spacing) x 30 mils thick - black astm heavy duty polyethylene - top side black, back side gray or black - Easy to install and affordable: goberco deck membrane + tape + downspout is between $1.5 - $ 2/s.f. - U.S. patent # 9,453,338 z-folds allow this unique membrane to act as flashing + gutter between joists + funnel meaning less risk of leaks at ledger board and rim joist. - Save time and money: no need of extra flashing and funnel (simply use typical gutter downspout). - Compatible with treated wood, cedar or composite wood. - Get extra storage under the deck, protect deck structure, get water, insects (termites, ants...) off the deck. - Available for 5 years, sold thousands of roll across USA and Canada, 20 years warranty (see website for details).

  • On-top of joists installation - keep framing and under deck area dry.
  • Unique Patented Deck Drainage System on the market which can act as - self flashing (to reduce leaks at ledger board) + channel valley between joists + water evacuation funnel (to reduce leaks and cost)
  • Easy to install - 1. Staple on top of joists 2. Self sealing tape over joints 3. Screw downspouts to water evacuation holes.
  • Material cost is between $ 1.5 - $ 2/s.f. ( goberco membrane is about $1.2/s.f., a good self sealing deck tape is about $0.4/s.f. , typical plastic gutter + down spout + roofing screws are low cost ).

User questions & answers

Question: Is this for 12"on center of joist
Answer: I believe it is US made
Question: Do you use excess on the house side to create its own flashing? Assuming you use the tape to seal the overlapping edges
Answer: Sorry can't tell you. What I can say it is one of the best hose nozzle I ever purchased. The handle is very useful for hanging. For washing the boat , or car or the side of your house it has plenty of power. I am going to purchase another one.
Question: Is 24" joist spacing available
Answer: I haven't tried it with hot water, but I leave this nozzle on the end of my hose all summer and it sits in the sun sometimes, so I guess it can handle it. I have 2 of them and like them because they're much easier to use than the regular nozzle.
Question: Does this have to be installed before the deck boards are installed
Answer: Yes, the connector is the same as the male (outside) end of a hose, so another hose with male connected to a faucet outlet should be able to have the female end (smaller end) connect to this easily. They are universal connectors.

Olympic Stain Smartguard Concentrated Multi-Surface Sealant, Clear, 15oz

Olympic Stain

Based on 174 reviews Check latest price

Product description

Olympic smart guard is the smarter way to seal. The Clear concentrate dries in only 1 hour allowing you to prep, clean and enjoy your deck in less than a day. Easy, fast, strong. Olympic Smart Guard Waterproofing Sealer penetrates the substrate to provide advanced durability and protection. Olympic Smart Guard clear deck sealant can be applied to wood decking, concrete patios, masonry, and even composite decks after rain or cleaning and dries in 1 hour. It is formulated to be extremely fast and easy to apply, especially from a pump sprayer, but applies easily with brush or roller as well. Smart Guard is a completely different sealant technology that penetrates wood to protect it from water damage at the surface and below. SmartGuard is highly water-repellent, but allows wood to breathe. Less water trapped in the wood means less water damage. When it comes to your outdoor space, Smart Guard is a versatile and convenient sealing solution. It seals wood, concrete, masonry and weathered composite, and its super-concentrated formula covers up to 500 square feet. One small, easy-to-handle, easy-to-pour pouch covers as much as two gallon cans. Easy Three-Step Spray Application: Simply add 2 gallons of water into your sprayer Pour in entire pouch of Olympic SmartGuard Pump and spray. Apply liberally See product label for full prep, application and disposal instructions.

  • Stain Your Deck Quickly And Easily - Olympic Smart guard is a patent-pending deck stain product that allows you to simply spray on the sealant eliminating the need for back-brushing your deck.
  • Simple Stain Process - To apply Olympic SmartGuard Deck Sealant simply pour the pouch into a deck sprayer, add 2 gallons of water, and then spray over your deck - it works on traditional wood decks, concrete, and even composite decking!
  • Quick Dry - Dries in 1 hour so you can entertain or spend time outdoors with less hassle and less disruption. Apply this deck sealant quickly and get back to enjoying your day.
  • Use Even After Rain - Can be applied after cleaning or rain ensuring you get to have fun on your deck as quick as possible
  • Durable - Strong durability and waterproofing protection makes Olympic Smart Guard the smart choice for any homeowner who wants to seal their wood or composite deck quickly and still enjoy the outdoors
  • Multi-Surface Use - While many deck sealants only work on wood, Olympic Smart Guard works as a sealant on Wood Decks, Concrete Patios, Masonry, and even weathered Composite Decks
  • A Trusted Name In Deck Stain Technology - The Olympic brand has been trusted to provide quality results since 1938. Its history of excellence and expertise has made Olympic Stains a category leader with a reputation for delivering innovation and durability at an affordable price. Gorgeous results are always guaranteed with Olympic Stains. With a full range of exterior stains, resurfaces and wood cleaners, we have the products you need to complete your next wood staining project right.

User questions & answers

Question: Does it contain teflon
Answer: The product is great and very stable. It is possible to “under mount“ this product. Sink will have to be mounted to a “subframe support” conforming to the entire perimeter of the bowl. The sink can be attached to a 3/4 - 1” frame using the supplied mounting clips. Anything thicker will be questionable. Allow for 1/8” (sink-lip) space between the subframe and the bottom surface of your counter material. An ample application of silicone sealant (Clear) between sink and the counter top will do the job.
Question: Can this be used on painted deck
Answer: Approximately 7 1/2” on my sink.
Question: Can it be brushed on
Answer: The roll up dish rack is included in the package. If not included, pls email to us through [email protected] with your order ID, we will make this correct.
Question: May wood surface be painted with finish after being treated with this sealant
Answer: For proper fit, we recommend taking the exterior dimension of the sink(left to right) and adding at least 3" for access to install hardware. Actually, can be smaller a little than we suggest.

Product features

Clean, Seal, and Enjoy All in One Day!

Olympic SmartGuard multi-surface waterproofer is a concentrated clear sealer formulated for easy application and fast dry. Olympic SmartGuard Waterproofing Sealer penetrates the substrate to provide advanced durability and protection. It can be applied after rain or cleaning and dries in 1 hour. It is formulated to be extremely fast and easy to apply, especially from a pump sprayer, but applies easily with brush or roller as well.

Simple Spray-On Application

Simply add 2 gallons of water into your sprayer. Pour in entire pouch of Olympic SmartGuard wood and composite deck sealant, pump and spray. Apply liberally.

Clean, Seal and Enjoy in one day!

When it comes to sealing your deck, Olympic SmartGuard can save you time. It can be applied to damp wood, even after cleaning or rain. Dries in 1 hour, so your surface is back in use 1 hour after application

Highly Water Repellent

SmartGuard is a completely different sealant technology that penetrates wood to protect it from water damage at the surface and below. SmartGuard is highly water-repellent, but allows wood to breathe. Less water trapped in the wood means less water damage.

Clean your Deck

Use Olympic Premium Deck Brightener and Wash to clean your deck, removing mold and mildew stains. This will also help restore weathered wood. Be sure to scrub your deck thoroughly to ensure the cleanest possible surface.

Mix in a Pump Sprayer

While you can apply SmartGuard in a traditional way, the formula is particularly convenient when used with a pump sprayer. Mix it into your sprayer with 2 gallons of water.

Apply to your Deck

Spray the mix onto your deck! Apply as much as you see fit, as you want to guarantee you're covering every inch of your deck. You can also use a brush to brush SmartGuard on to harder to reach surfaces, like a railing.

Let Dry and Enjoy

Let the surface dry for 1 hour and your newly-stained deck is complete!

Seals and Stains Wood

When it comes to your outdoor space, SmartGuard is a versatile and convenient sealing solution.

Protects Concrete

It seals wood, concrete, masonry and weathered composite, and its super-concentrated formula covers up to 500 square feet.

Keeps Masonry Safe

One small, easy-to-handle, easy-to-pour pouch covers as much as two gallon cans.

Yes, Even Composite!

Easily stain or seal your surface of choice with Olympic SmartGuard.

About Olympic Stains

A Reputation as Durable as Our Products

The Olympic brand has been trusted to provide quality results since 1938. Its history of excellence and expertise has made Olympic Stains a category leader with a reputation for delivering innovation and durability at an affordable price. Gorgeous results are always guaranteed with Olympic Stains. With a full range of exterior stains, resurfacers and wood cleaners, we have the products you need to complete your next wood staining project right.

At Olympic Stains, we are constantly innovating new ways to help you stain your next project.

THOMPSONS WATERSEAL TH.043841-16 Solid Waterproofing Stain, Acorn Brown

Thompson's Water Seal

Based on 384 reviews Check latest price

Product description

Provides complete outdoor wood protection. This solid exterior wood stain adds the most color to the surface and shows the least wood grain. Available in several beautiful deck stain colors.

  • Prevents Water Damage
  • Advanced Polymers Provide Fade Resistant Color
  • Coating Resists Mildew and UV Damage
  • Applies to Freshly Cleaned Damp or Dry Wood
  • Exceeds Industry Standard ASTM D-4446 for Waterproofing Wood

User questions & answers

Question: Can this be applied to damp wood? How would it be on raised garden beds
Answer: I wouldn't recommend it. Even applying to untreated bare wood it started peeling and flaking after less than one year. Damp wood would certainly lead to bubbling before long.
Question: Is this solid, or semi-transparent? Title says solid. But description and product image show semi-transparent
Answer: Solid, worked nice but had to put two coats to really cover good.
Question: So is this 1gallon or 16 gallons? I’ve seen a similar question but I wanna be sure
Answer: One (1) gal. 1-gallon.
Question: In the description, it says 16 gallon. What size is it
Answer: I got 16 gallons! It took 3 UPS guys to deliver it to me. Cheaper than drinking water!

Product features

The Thompson's Company has earned a well-deserved reputation as identifying industry trends and emerging technologies.

In the early 1920’s, polymer chemist Edward Addis Thompson developed a formula that protected buildings from exterior water damage. His discovery became known as Thompson's WaterSeal Clear Multi-Surface Waterproofer and initially was used by architectural and construction firms for concrete applications.

Roxil Wood Protection Cream (1 Quart) Instant Waterproofing Clear Treatment, Weatherproofs: Fences, Decking, Furniture, Sheds

Based on 1 reviews Check latest price
  • ✅ Weatherproofs wood for 10+ years - Shower-proof application - Instantly Waterproofs
  • ✅ Reduces mould and algae growth - Reduces warping and cracking
  • ✅ Breathable, Colourless Protection - Creates an invisible waterproof barrier that protects the wood.
  • ✅ One coat application by brush or roller, no drip formulation. Effective on softwoods and weathered hardwoods.
  • ✅ Roxil Wood Protection Cream will cover approximately 130 to 200 sq. ft. per gallon

User questions & answers

Question: The instructions say to use with softwoods. What about hardwoods
Answer: "Hardwood" describes wood from trees that lose their leaves seasonally. "Softwood" refers to conifers (e.g. pine trees). There are plenty of Hardwoods that are softer than hard Softwoods (though generally hardwoods tend to be sturdier than softwoods). I suspect they're recommending this for use with Softwoods because they'll be more likely to absorb this than a hardwood would. There's a reason why you don't generally see Pine used to make Barrels (or boats), other than because any consumable liquid you put in a pine barrel would taste like Pine air-freshener smells. If my suspicion is correct, that they're worried about hard closed-pore woods not absorbing this as well as "softwoods".. there are some "Hardwoods" that are very much like "Softwoods" in this regard. For Example.. White Oak is used for Wine Barrels because it has closed pores (and because it has some natural resistance to decay.. more than other North American & European hardwoods). Red Oak, on the other hand, has open pores which makes it way more water permiable. You can actually take a small piece of red oak (like a dowel), put one end in water and blow in the other end, and (depending on the cut and particular tree) you can actually create bubbles in the water because the open pores act like straws. Anyway.. bottom line.. I strongly suspect they're recommending for Soft Woods because they expect they will absorb more of the material.. which would also be important for it to not leave a goopy coating since it applies like a thin paste. For these reasons, it would probably work well on open-pored hardwoods too. I suspect this won't work well with pressure-treated wood either. The protectant that is applied deep into the wood under pressure would close up the pores (by design), prevent this from penetrating into the wood (same problem we have with gluing pressure treated wood). Not only would this decrease it's effectiveness, it would also adversely affect how it looks after it dries. You'll end up with a much thicker top-coat if it can't absorb into the wood. ---Steven. P.S. I was going to check the questions to see if there was info about using this as an anti-rot protectant under a final top-coat.. until I saw in the that it's silicon based. I know it's not related to this specific question but... Silicone-based products are hydrophobic (they repel water). If you tried paint over this with a water-based latex finish, it wouldn't stick. The Roxil would literally push the paint away from it's surface electrostaticly, the same way it makes water drops beed-up. Bummer, for a moment I had hopped this might be a clear alternative to green copper-based wood protectant.. which requires a bit more work to cover with White top-coats. :-/. Oh well.. still looks interesting for what it is. I'm going to get a quart to try out.
Question: Can this be used on pressure treated wood
Answer: I just submitted an answer to another question here.. about this product being recommended for Softwood, not Hardwood. Please check that answer out after it's been approved for posting to see the following in it's full context. Here's the bit I included there specifically about using this with pressure treaded wood though.. "I suspect this won't work well with pressure-treated wood either. The protectant that is applied deep into the wood under pressure would close up the pores (by design), prevent this from penetrating into the wood (same problem we have with gluing pressure treated wood). Not only would this decrease it's effectiveness, it would also adversely affect how it looks after it dries. You'll end up with a much thicker top-coat if it can't absorb into the wood." Sorter context: I think they recommend only using on softwood because it's more likely to absorb deeply into softwood than (most) hardwood. Because it's a paste.. it is either going to absorb into the wood, or it's going to dry as a thick top-coat that's more likely to wear or wash away. The Pressure-Treatment process would also prevent this from absorbing deep into the wood fiber and pores. I suspect (but can't confirm, yet) that this won't apply well to Pressure treated wood for this reason.. at least not to new pressure-treated wood. If you wanted to protect old PT wood that's got a dry weathered surface, you might have more success. --hope this helps, even though it's not based on first-hand knowledge.. just my experience working with wood. :-)
Question: Does anyone know if this product will work on an exterior table that was previously clear coated? It’s in need of a new, more robust clear coat
Answer: I fear the clear coat will repel the Roxil Wood Protection Cream from absorbing into the table wood. If you choose to apply the product, lightly sand the table first.
Question: Should this be used after stain is fully dry or right after I stain wood
Answer: I would let it dry first

Product features

Roxil Wood Protection Cream

Weatherproof fences, decking, sheds, furniture and more without changing their appearance.

Roxil Wood Protection Cream is a silicone cream emulsion for wooden structures. The unique cream formula is applied in a single coat directly to unpainted softwood timber using a brush or roller. After application, the cream will absorb into the wood surface and create an invisible waterproof barrier.

Waterproofs in a single coat

Most competing wood weatherproofing treatments are spray applied liquids. Liquids, when spraying or applying by brush, are difficult to apply accurately without dripping or splashing onto plant life or adjacent structures. The cream formulation of Roxil Wood Protection Cream is easy to apply neatly and allows for precise and measured application. It also results in a complete even coverage that lasts longer than competitor products.

Roxil Wood Protection Cream will cover approximately 45 – 55 square ft. per quart.

Only a single coat of Roxil Wood Protection Cream is needed to protect cleaned softwood timbers for 10+ years. The cream formula also allows for a quick and accurate application, with no splashback or run off on vertical or horizontal surfaces. To ensure best results, treatment surfaces should first be cleaned using a biocidal wood cleaner. For particularly vulnerable surfaces, a pre-treatment application of a suitable wood rot treatment should be considered.

Unique Cream Formulation - Instantly Waterproof

Most liquid treatments change the appearance of wood, leaving a stained color or a sheen. Roxil Wood Protection Cream does not change the color or texture of the wood that it is applied to, allowing it to retain its natural beauty. If desired, it is possible to apply a stain before the application of Roxil.

Reduces Mold and Algae Growth

Softwoods are highly susceptible to mold and algae growth due to their absorbent nature, especially in areas with high rainfall or in shade. Roxil Wood Protection Cream creates an invisible waterproof barrier that significantly reduces moisture ingress and makes the surface of softwoods inhospitable to mold and algae.

Works on softwoods and weathered hardwoods such as Pine

Roxil Wood Protection Cream undergone years of real world weather testing and has been performance tested on a wide range of woods by Safeguard Europe's Research and Development Team. Including but not limited to Pine.

Works on softwoods and weathered hardwoods such as Douglas Fir

Roxil Wood Protection Cream undergone years of real world weather testing and has been performance tested on a wide range of woods by Safeguard Europe's Research and Development Team. Including but not limited to Douglas Fir.

Works on softwoods and weathered hardwoods such as Oak

Roxil Wood Protection Cream undergone years of real world weather testing and has been performance tested on a wide range of woods by Safeguard Europe's Research and Development Team. Including but not limited to Oak.

Works on softwoods and weathered hardwoods such as Red Cedar

Roxil Wood Protection Cream undergone years of real world weather testing and has been performance tested on a wide range of woods by Safeguard Europe's Research and Development Team. Including but not limited to Red Cedar.

Cabot 31243 Crystal Clear Waterproofing Stain, 1 Gallon

Cabot

Based on 12 reviews Check latest price

Product description

This item is a Cabot 01-1000 Waterproofing Sealer, Crystal Clear,1 Gal. Purpose of use for Painting Supplies, adhesive-caulk. This product is manufactured in United States.

  • This item is a Cabot 01-1000 Waterproofing Sealer, Crystal Clear,1 Gal
  • Purpose of use for Painting Supplies, adhesive-caulk
  • This product is manufactured in United States
  • Model number: 31243

User questions & answers

Question: Do I need to apply mineral spirits before applying Cabot waterproofing sealer on my wood deck
Answer: Yes our membrane fit for maximum joist spacing of 16'', if less install z-folds on center then trim each sides ( please see video on our website ). Regarding sister joists make sure to have the self sealing tape covering both in a goal to prevent leaks. Thank you.
Question: Is this producr good for an outdoor wood deck
Answer: Goberco Under Deck Drainage System raw material is ASTM LLDPE ( linear low density polyethylene ) 30 mils thick, please see our website for details.
Question: Is this water based
Answer: Hello, if there is debris accumulation you can use a garden hose to wash debris down the evacuation holes. In most case distance between deck boards allow enough water flow to wash debris, in some occasion you should need to pull out a deck board nearby the house (or make small holes to close with plugs if needed to wash more often) and push garden hose on the membrane. The valley created with our membrane is 3-4'' deep which let a lot of space before debris hit/stuck to deck boards (heavy rains wash many debris) and space to run a garden hose. Thank you.
Question: Can I use this with a pump spray or is it too thick
Answer: At the end of the joist bay staple the membrane on top of rim joist then make a hole. Attach a piece of gutter downspout ( about 8'' long ) to this hole, make sure each downspout piece drops far enough into the gutter to prevent wind from pushing water off the gutter. Please see installation video on GOBERCO's website.

SEAL-ONCE MARINE - 1 Gallon Penetrating Wood Sealer, Waterproofer & Stain. Water-Based, Ultra-low VOC formula for high-moisture areas to protect wood docks, decks, piers & retaining walls.

SEAL-ONCE

Based on 327 reviews Check latest price
  • Specially Formulated to be Applied Around & Over Fresh or Salt Water
  • Water-based, Low VOC, Non-toxic; Safe for People, Pets, Plants & Marine Life
  • Superior Nanotechnology Penetrates Deep, Coating Wood Fibers at the Cellular Level
  • Performs like an Oil-Based Sealer Without any Harmful Chemicals or Side Effects
  • Creates a Flexible, Breathable Barrier that Enhances, Stabilizes & Protects Wood

User questions & answers

Question: How do appy on a cloudy day in the tropics ? A cloudy day here means.............it's going to rain . How critical is this
Answer: how long does it take to dry in 70 degree dry sunny weather
Question: Can you use a regular wood stain after applying
Answer: Yes the clear MARINE can be painted or stained. Or you can purchase a tint for SEAL-ONCE and use the MARINE as a sealer and stain. MARINE Features: • Clear formula can be painted or stained after treatment • Tinted formula provides additional UV protection • Available in 11 semi-transparent tint colors • Eco-friendly, Non-toxic; will not harm pets, plants, people or marine life • Ultra-low VOC, Water based • Can be applied around or over fresh or salt water • Flexible, breathable barrier, Stabilizes & protects wood • Prevents warping, cupping, wood rot & decay • Resistant to salt water spray • Prevents mold, mildew & algae growth • Soap and water cleanup
Question: I want to use this on a 6x6 wood beam at the opening to my walk-in shower (floor to ceiling). No direct shower spray. Will this seal it
Answer: Yes you may use it for this specific application. As suggested in a comment down bellow, you would want to make sure that it is fully cured before using the shower. Typically it would take 48 hours to cure but it may take longer depending on the environment.
Question: Can it be used on green treated lumber
Answer: Pressure treated lumber has to be dry.

Product features

The Science of SEAL-ONCE and Innovative Use of Nanotechnology in Wood Finishes & Stains

Unlike many top-coat sealers sold today that trap moisture below the surface, MARINE creates a flexible, breathable barrier which allows water vapor to escape. This key feature helps prevent damage to wood caused by water intrusion, such as: wood rot, decay, mold & mildew growth, cracking & splitting. Typical wood sealers form a barrier on the surface of the wood, trapping moisture below the surface. As the water evaporates, it causes the surface coating and the substrate to crack & peel, leaving a broken surface that requires continued maintenance and is susceptible to additional damage. SEAL-ONCE uses cutting-edge, nano-particle technology to allow wood to breath and help prevent water vapor damage by protecting wood from the inside out.

Water-based Product that Will Not Harm People, Pets, Plants, Livestock or Marine Life.

SEAL-ONCE products are ultra-low VOC, low odor, non-toxic, non-flammable and non-ozone depleting. They are safer for the environment, easier to apply than solvent based wood finishes and clean up with soap & water. They do not contain nitrates, phosphorous compounds or heavy metals like many Oil-based sealers & stains on the market today.

Quick & Easy Application

Apply first coat with a synthetic brush; pump-up garden sprayer; air-assisted; and/or airless sprayer. Use 15-17 tip and medium to coarse spray pattern. When spraying, always back brush for best results. Second coat can be applied once first coat has penetrated, but is still damp. Second coat must be applied within one hour of applying first coat. For best results, apply in the shade and out of direct sunlight. Clean-up brushes or sprayer with warm soapy water.

Choose from 11 Wood Stain Tints

MARINE can be tinted for use as wood stain in any of the 11 color tints available: Clear, Light Brown, Natural, Brown, Mahogany, Redwood, Bronze Cedar, Cedar, Black, Battleship Gray, Shale Gray & Cape Cod Gray. The tints are sold separately and when mixed with Clear, the tinted formula provides additional UV protection from harmful sun rays.

Surface Preparation & Coverage

Approximate coverage: 250-350 sq. ft./gallon per coat. Actual coverage will vary due to the porosity of the surface. All surfaces should be cleaned with SEAL-ONCE All Wood Cleaner before sealing for best penetration and performance. Remove all old coatings, dust, debris and loose material. Remove oil, grease, algae, grime, mill glaze and mold and mildew stains with appropriate cleaners.

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