Seal Once Nano Guard Plus Poly
seal once poly blend colors

Seal-Once™ Nano Guard Plus Poly Waterproofing Wood Sealer for Siding, Logs and Decks

5 out of 5 based on 3 customer ratings
(3 customer reviews)

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.

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Product Description

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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

  • Revolutionary nano-technology will sheet water similar to car wax within 24-48 hours. Does not contain any wax, paraffin or beading agents.
  • Uses: garden beds, timber frames, play structures, bleachers, shingles, railings, decks, fences, log homes, siding and decks
  • Saves time and money
  • Seal-Once™ Nano Guard Plus Poly Waterproofing Wood Sealer uses a blend of waterproofing polymers and polyurethane designed to penetrate deep into wood and move with a wood’s natural expansion/contraction cycles.
  • Protects vertical surfaces up to 10 years and horizontal surfaces up to 6 years from water penetration
  • Not Harmful to Humans, Pets, Plants or Livestock
  • Superior Long Lasting Protection
  • Will Not Burn Skin
  • 10 Beautiful Semi-Transparent Tints
  • Slip Resistant
  • Fast drying
  • Helps prevent wood from cracking, splitting and warping
  • Will not streak or discolor surfaces
  • Waterproofs
  • Prevents mold and mildew stains
  • Low VOC’s at <2gm/l, Not Toxic
  • Easy Soap & Water Clean Up
  • Eco-Friendly Formula. Not harmful to humans, plants, livestock or pets

Coverage

Size Smooth 1st Coat Smooth 2nd Coat Rough Sawn1st Coat Rough Sawn 2nd Coat
1 Gallon 250 sqft 250 sqft 200 sqft 200sqft
5 Gallon 1250 sqft 1250 sqft 1000 sqft 1000 sqft
  • Actual coverage will vary due to porosity of the wood on which it is applied. In cases where Seal-Once™ Nano Guard Plus Poly Waterproofing Wood Sealer Waterproofing Wood Sealer is applied to very dry, weathered or media blasted wood 3 coats may be necessary.
  • Seal-Once™ Nano Guard Plus Poly Waterproofing Wood Sealer Waterproofing Wood Sealer  is a two coat product. Applying less than two coats will greatly affect the durability of the product.

 

Product Facts for Seal-Once™ Nano Guard Plus Poly Waterproofing Wood Sealer

Application Temperature
  • 40°F and 90°F
Application Methods
  • Brush
  • Pump up sprayer (must back brush)
  • Air assisted  (must back brush)
  • Airless sprayer  (must back brush)
Surface Preparation
  • All Wood Cleaner is recommended to deep clean and prepare bare surfaces prior to applying Seal-Once Nano Guard Plus Poly.
  • Clean, dry, bare wood surface
  • Free of Mold and Mildew
  • Moisture Content 22% or Below
Frequency
  • Will prevent water from soaking into wood surface for 10 years on vertical surfaces and 6 years on horizontal
  • Re-apply as needed
Special Instructions
  • Minimum 2 coats required, 3 for very dry, weathered wood
  • Stir thoroughly and periodically
  • Tint added and mixed on site
  • Only tinted
  • See cleaning suggestions under Surface Preparation for Maintenance Cleaning for surfaces already coated with Seal-Once Nano Guard Plus Poly.
Dry Time
  • 6-9 hours depending on temperature

 

Colors

(all colors  shown on Red Cedar)

Surface Preparation

All surfaces must be cleaned before applying Seal-Once™ Nano Guard Plus Poly Waterproofing Wood Sealer  for best saturation and performance.

  • Remove algae, grime, mold and mildew stains, mill scale (on new wood such as western red cedar, IPE and Douglas fir) and old semi-transparent stains using a pressure washer with appropriate cleaners.
  • We do not recommend sanding due to the pores of the wood may fill with sawdust impeding the penetration of Seal-Once™ Nano Guard Plus Poly Waterproofing Wood Sealer.
  • If sanding is required, pressure wash the wood to remove the sawdust.
  • After cleaning, test absorbency of wood by sprinkling a few drops of water on the surface. If the water does not readily penetrate the surface additional stripping is necessary.

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!

  • All new/ bare surfaces should be cleaned with All Wood Cleaner before initial application of Seal-Once Total Nano Guard Plus Poly for best saturation and performance.
  • Remove algae, grime, mold and mildew stains, mill scale(on new wood such as western red cedar, IPE and Douglas fir) and old oil-based semi-transparent stains using a low pressure washer.
  • We do not recommend sanding. Pores of the wood may fill with sawdust impeding the penetration of Seal-Once Nano Guard Plus Poly. If sandingis required, use a garden hose or low pressure washer to remove the sawdust.
  • After cleaning, test absorbency of wood by sprinkling a few drops of water on the surface. If the water does not readily penetrate the surface, additional stripping is necessary before applying Seal-Once Nano Guard Plus Poly.

 

Surface Preparation for weathered, gray wood

  • Use All Wood Cleaner according to directions to remove gray wood weathered from UV exposure.

 

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

  1. Mix a solution of one gallon water, 14 oz. bleach and one ounce of Dawn® type dish detergent.
  2. Spray on surface with pump up sprayer.
  3. Allow to dwell for 15 minutes.
  4. Wash of completely to avoid streaking or color fading.
  5. Do not allow solution to dry on the wood surface.
  6. Do not use All Wood Cleaner or X-180 Weathered Wood Restorer.

 

Surface Preparation for maintenance cleaning of surfaces coated with Seal-Once Nano Guard Plus Poly: 

Please note: This maintenance cleaning solution is recommended by the manufacturer of Seal-Once  Nano Guard Plus Poly. It will protect the tint while removing mold, mildew and dirt.

 Mix a solution of one gallon water, 14 oz. bleach and one ounce of Dawn® type dish detergent.

  1. Spray on surface with pump up sprayer.
  2. Allow to dwell for 15 minutes.
  3. Do not allow solution to dry on the wood surface.
  4. Wash off completely to avoid streaking or color fading.

 

Surface Preparation for wood with mold and mildew

Please note:

  • This cleaning solution will remove mold and mildew and will not remove the tint.
  • Do not use All Wood Cleaner to clean surfaces coated with Seal-Once Nano Guard Plus Poly. Use the cleaning formula suggested below.
  1. Mix a solution of one gallon water, 14 oz. bleach and one ounce of Dawn® type dish detergent.
  2. Spray on surface with pump up sprayer.
  3. Allow to dwell for 15 minutes.
  4. Wash of completely to avoid streaking or color fading.
  5. Do not allow solution to dry on the wood surface.
  6. Do not use All Wood Cleaner or X-180 Weathered Wood Restorer.

 

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 termitesNot 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 sidingNot 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.

 

Application

Seal-Once™ Poly Blend Waterproofing Wood SealerSeal-Once™ Poly Blend Waterproofing Wood Sealer


 

Weather Conditions during Application

  • Do not use if air or surface temperature is below 40°F / 4.44°C
  • Do not apply in rain or when rain is imminent
  • For best results apply in the shade and out of direct sunlight.
  • If applying in direct sunlight and wood is hot, spray with a mist of water and apply Seal-Once™ Nano Guard Plus Poly Waterproofing Wood Sealer immediately on dampened surface.

 

Apply Seal-Once™ Nano Guard Plus Poly Waterproofing Wood Sealer

Please Note:

  • New pressure treated wood should be allowed to dry 3-6 months before applying Seal-Once™ Nano Guard Plus Poly Waterproofing Wood Sealer.
  • Clear Seal-Once™ Nano Guard Plus Poly Waterproofing Wood Sealer will not provide UV Protection, only an added Seal-Once™ Tint will protect wood from sun damage. Without tint added, wood will gray naturally within 2 years of application.
  • Seal-Once™ Nano Guard Plus Poly Waterproofing Wood Sealer is a two-coat application on clean, dry, bare wood with moisture content below 22%. Any less than two coats will lead to greatly decreased durability.
  • Wood already coated with Seal-Once™ Nano Guard Plus Poly Waterproofing Wood Sealer, requires one maintenance coat depending on weathering. Please see the Seal-Once™ Nano Guard Plus Poly Waterproofing Wood Sealer Maintenance section for more details.
  1. Always follow application procedures on container.
  2. Mix in appropriate tint amount. Mix one tint container into a single one gallon pail and five tint containers into a five gallon pail.
  3. Buy sufficient product for the whole job and intermix multiple containers together before starting to ensure color uniformity.
  4. Mix thoroughly.
  5. Stir periodically during application.
  6. Do not thin.
  7. Back prime all siding with 1 coat of Seal-Once™ Nano Guard Plus Poly Waterproofing Wood Sealer if possible to protect against checking.
  8. Coat all end grains with Seal Ends Once™ prior to applying tinted Seal-Once™ Nano Guard Plus Poly Waterproofing Wood Sealer for best results.
  9. Apply two coats with a brush, pump up sprayer, air assisted or airless sprayer with .017″ – 019″ tip size. Do not roller apply. Brush out any puddles.
  10. Apply 2nd coat within 1-2 hours or more of 1st coat depending on temperature. 1st coat should be dry to the touch.
  11. On very porous, aged or media blasted wood a 3rd coat may be necessary.
  12. Clean tools with soap and warm water.
  13. Store at above 32° F and keep from freezing.

 

Maintenance

Regular maintenance and annual attention to your log home can save you money and timeProper maintenance starts with visual inspection. Weather, exposure and altitude may vary, so maintenance may be needed sooner than later in some locations.

 

Every Year:

  • Inspect logs and check for any upward facing checks/cracks that can hold water.
  • Fill all checks with backer rod and Check Mate 2 when the wood is completely dry.
  • Examine caulking at corners, butt joints, windows and doors, and fill any voids with backer rod and Energy Seal.
  • After filling cracks and checks, perform an annual maintenance cleaning with Log Wash to clean off the accumulation of dirt and pollen.
  • Check for wood that looks dried out; shows color changes or fading of Seal-Once™ Nano Guard Plus Poly Waterproofing Wood Sealer.

Maintenance Application

  1. Always follow application procedures on container.
  2. Wash according to Surface Preparation for Maintenance Cleaning guidelines above.
  3. Warning: Do not use All Wood Cleaner for maintenance cleaning of Seal-Once™ Nano Guard Plus Poly Waterproofing Wood Sealer.
  4. Mix in appropriate tint amount. Mix one tint container into a single one gallon pail and five tint containers into a five gallon pail.
  5. Buy sufficient product for the whole job and intermix multiple containers together before starting to ensure color uniformity.
  6. Mix thoroughly.
  7. Stir periodically during application.
  8. Do not thin
  9. Apply one coat with a brush, pump up sprayer, air assisted or airless sprayer with .017″ – 019″ tip size. Do not roller apply. Brush out any puddles.
  10. Cleanup with soap and warm water.
  11. Store at above 32° F and keep from freezing.

 

Shipping

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.

 

 


MSDSClick here for this product’s MSDS

 

 

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3 reviews for Seal-Once™ Nano Guard Plus Poly Waterproofing Wood Sealer for Siding, Logs and Decks

  1. 5 out of 5

    (verified owner):

    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)!

  2. 5 out of 5

    (verified owner):

    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!

  3. 5 out of 5

    :

    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.

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