Seal-Once™ Nano Guard Plus Poly provides a revolutionary all-in-one product for all exterior and interior wood surfaces with long lasting protection, vibrant tints and eco-friendly waterproofing.
Please select options below to see price.
Seal-Once™ Nano Guard Plus Poly Waterproofing Wood Sealer provides a revolutionary all-in-one product for all exterior and interior wood surfaces with long lasting protection, vibrant tints and eco-friendly waterproofing. Vibrant tint selection creates a striking look on your home or deck. Increased resistance to abrasions means your deck looks beautiful longer. Guaranteed to keep water out for 6 years on horizontal surfaces and 10 years on vertical surfaces, means less labor and more time enjoying your home.
Product Type: Water-based formula
Uses: Decks, Railings, Shingles, Shake Roofs,
Siding, Fences, Planters, Outdoor Furniture,
Play Structures, Log Homes, & Structural Framing
Note: NOT FOR USE ON SAUNAS
(all colors shown on Red Cedar)
Natural (not clear)
Cape Cod Grey
All surfaces must be cleaned before applying Seal-Once™ Nano Guard Plus Poly Waterproofing Wood Sealer for best saturation and performance.
Note: Woods such as redwood, red cedar, mahogany, Douglas fir, etc. contain tannic acid which tends to migrate to the surface and discolor the stain, especially noticeable when using light colors. The discoloration is not harmful and can usually be removed. Apply a cleaning solution of All Wood Cleaner. Do not allow cleaning solution to dry on wood surfaces.
Surface Preparation for new, bare wood
Great Preparation is the Key to Application Success!
Surface Preparation for weathered, gray wood
Surface preparation for wood which has original formula Seal-Once™Total Wood Protection:
Please note: This cleaning solution will remove mold and mildew and will not remove the tint
Surface Preparation for maintenance cleaning of surfaces coated with Seal-Once Nano Guard Plus Poly:
Check the Moisture Content of Your Logs
Do not apply Seal-Once™ Nano Guard Plus Poly Waterproofing Wood Sealer Waterproofing Wood Sealer to wood with over 22% moisture content.
To test the moisture content of your wood, borrow a moisture meter from your contractor or purchase one at your local hardware store. For quick reference:
Laminated logs: The moisture content of laminated logs is generally below 14%. These logs are usually ready for immediate application of Seal-Once™ Nano Guard Plus Poly Waterproofing Wood Sealer Waterproofing Wood Sealer once they have been cleaned and allowed to dry for the appropriate amount of time. Always use a moisture meter to confirm the moisture content.
Kiln-dried or air dried logs: Use a moisture meter to check.
Green, wet, or treated logs: These logs have a moisture content greater than 22%. Allow the logs to sit in a dry area and check their moisture content on a regular basis. Logs with high moisture content can take up to 6 months to 1 year to reach the appropriate 22% or below moisture content for applying Seal-Once™ Nano Guard Plus Poly Waterproofing Wood Sealer.
Apply a Wood Preservative
A wood preservative (borate) is only necessary for new construction with logs, siding, and structures that are infested with powder post beetles and termites. Not needed for deck applications.
Have your logs been pre-treated with a wood preservative (borate) at the factory or mill? Contact your log or siding provider if unsure.
What is a wood preservative?
Wood preservatives (borate) make wood toxic to wood damaging organisms such as powder post beetles, carpenter ants and fungi. Wood preservatives do not protect against Carpenter Bees and other wood drilling insects, only those that ingest wood. Click here to find out about additives available for prevention of Carpenter Bees.
Why apply a wood preservative (borate) before applying Seal-Once™ Nano Guard Plus Poly Waterproofing Wood Sealer?
Applying a wood preservative can protect your home from damaging organisms for the life of the home. Seal-Once™ Nano Guard Plus Poly Waterproofing Wood Sealer soaks into wood to create a film that protects against mold/mildew growth and repels water. If a tint is chosen with Seal-Once™ Nano Guard Plus Poly Waterproofing Wood Sealer, the tint provides UV protection. Seal-Once™ Nano Guard Plus Poly Waterproofing Wood Sealer on its own is not a wood preservative. LogFinish.com recommends applying ShellGuard RTU or ShellGuard Concentrate to your logs before applying Seal-Once™ Nano Guard Plus Poly Waterproofing Wood Sealer.
Caulk All Gaps and Checks
Caulking is only necessary if your project contains logs and siding. Not needed for deck applications.
It is natural for wood to crack/check over time due to changing seasons, temperature and aging.
Fill any spaces between the logs and upward facing cracks/checks in the wood after applying a wood preservative and before applying Seal-Once™ Nano Guard Plus Poly Waterproofing Wood Sealer. Fill all joints, cracks, and nail holes with a good quality acrylic latex caulk/filler created specifically for use with wood like Energy Seal or Check Mate 2 prior to applying finish.
Test the Stain
We always recommended performing a two coat color test to a clean, dry, bare area of the structure that you are planning on applying Seal-Once™ Nano Guard Plus Poly Waterproofing Wood Sealer. Please Note: Seal-Once™ Nano Guard Plus Poly Waterproofing Wood Sealer is difficult to remove once it has been applied. Before doing a full application make sure that your color selection is correct, has a look you want, and a maintenance schedule you can manage.
Weather Conditions during Application
Apply Seal-Once™ Nano Guard Plus Poly Waterproofing Wood Sealer
Regular maintenance and annual attention to your log home can save you money and time. Proper maintenance starts with visual inspection. Weather, exposure and altitude may vary, so maintenance may be needed sooner than later in some locations.
Seal-Once™ Nano Guard Plus Poly Waterproofing Wood Sealer, is a water-based stain which can be shipped everywhere in the United States via FedEx. Seal-Once™ is shipped as a clear base product in one and five gallon plastic pails. LogFinish.com ships most orders the same day which are placed by 1:00 EST.
Click here for this product’s MSDS
Peggy – July 8, 2018
Bill & Rae Fryberg ensure that dealing with the job of staining is as pleasant as possible. We have dealt with them for years for cleaning & staining our log home. When we built an addition they were our first call when it came to the exterior. Their products have proven to be an excellent choice. They have also always gone above & beyond to answer all of our questions without making us feel like we were a bother. Rae even suggested a new color for the front porch & bridge of the addition. We love it! And we love LogFinish!
john r – September 27, 2017
I had leftovers from 2015 that used to stain my shed. Used every drop i had. Did not go bad or get junky at all. I had stored it in my basement. Never seen anything like it. Usually stains get cruddy pretty quick after opening. Pleasant surprise. Matches the house near perfect. No fade on the house in two years. Steel roof is already fading fast. But not my stain. Sweet. Ordering more for my other outbuilding.
Eric Laser (verified owner) – July 6, 2017
I did a lot of research prior to choosing Seal Once Polyblend for our deck. I was initially leaning toward the oil-based product they sell, but went with the Polyblend at the recommendation of the Logfinish rep. Though water-based, it penetrates well and has easy cleanup. It is very thin and watery, which worried me a little at first, but the redwood color we used is beautiful. It looked good after the 1st coat, but absolutely beautiful after the 2nd coat. Water beads up on it after a rain and it should hold up for 6 years on horizontal surfaces. The Logfinish rep was very helpful and they sent me 6 different colors to try out by 2nd day mail. Also, the estimated coverage per gallon was spot on. Don’t be put off by its cost. It’s worth every cent (and you get what you pay for)!
Miriam (verified owner) – July 2, 2017
This stain/sealer is awesome!
I had used some crap stain/sealer for my deck a few years back and I knew I hated it when I first put it on. Now that it had gotten old, I sanded it off and decided I’d rather spend the extra cost on a better grade sealer.
I put three coats on the handrails and steps and two on everything else. It went on evenly, and was a dream to work with. It drys fast so you’ll need to keep moving to sustain a wet edge. I love the sheen it has. I would definitely recommend this product to anyone wondering if it’s worth the extra cost. I can’t imagine anyone being disappointed.
My deck looks like fine furniture! Now to keep those birds from perching on it!
john r – October 1, 2015
The folks at logfinish.com were super helpful, as my buddy who just did his log home said they would be. There was a little bit of a learning curve, but I got the hang of it pretty quick. Looked great after one coat, amazing after two coats. The sample doesnt quite do the color justice as there isnt really enough in the sample to appreciate the rich ness of the color. We chose redwood and it exceeded our hopes. Looks like a pro did the job. We sprayed using the sprayer they sell, and used the wooster brushes. Good combo for a good job. We cleaned the wood with the all wood cleaner. Glad I did. Dirtier than I thought, and it seemed to take the stain better than the test pieces. I have lapped inch thick rough cut pine siding dried in place for one year, at 18 percent moisture content. This was the perfect choice. A neighbor commented that the house looked like a piece of furniture with this finish.
Your review *
Save my name, email, and website in this browser for the next time I comment.
Seal-Once Poly Blend in Cedar
Lower section of a Florida dock with two coats of Poly Blend in Cedar.
Deck with Seal-Once Nanoguard plus Poly
The Wooster Professional Stain Brush is a professional bristle/poly blend stain brush for use with all stains, sealers and wood toners whether water-based or oil-based.
Eco-friendly All Wood Cleaner combines brighteners to remove unsightly wood discoloration, including gray from UV damage. It easily and safely removes mold and mildew stains and dirt. Extraordinary cleaning power without harsh chemicals.