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NANO Penetrating Wood Sealer

Rated 4.60 out of 5 based on 5 customer ratings
(5 customer reviews)

$23.98 USD$260.98 USD

  • Deep penetrating formula uses proprietary nanotechnology to protect from the inside out
  • Water-based, ultra-low VOC formula is safe for the environment
  • Allows wood to age naturally without decay
  • Can be painted or stained over

Additional information

Weight N/A
Dimensions N/A

1-Quart, 1-Gallon, 5-Gallon

5 reviews for NANO Penetrating Wood Sealer

  1. Rated 5 out of 5


    “I am very glad I found your Website as there is nothing like this at the big box stores. The Seal Once Finish I purchased worked very well and looks great, all my neighbors were impressed and said they would use your company in the further for their wood projects. Thank you.”

  2. Rated 4 out of 5


    Best protective non-toxic coating for exterior wood I have found. I use Seal Once Wood Finish on a few of my wood sculptures in the yard and have been happy with the results to date.

  3. Rated 5 out of 5

    Anthony V.

    It is a bit more expensive, but worth the price. Does clean up easily if done promptly. Mixing with tints was easier than expected and worth it with 11 colors to choose from. Shipped in good containers, with adequate protection, so waste in mixing and pouring was minimal. The desired reaction is for as deep as possible penetration into wood surface. Sprays in airless unit very well. Product and how it reacts with wood at low temperature is very sensitive, additional warning would be advisable to users in low temps.

  4. Rated 4 out of 5


    Great product!

    We had used some garbage stain/sealer for my deck a few years ago and I knew I hated it as soon as we were done putting it on. Now that it had gotten old, we sanded it off and decided it was time to spend the extra cost on a better grade sealer. We used three coats on the handrails and steps and two on everything else. It went on evenly, and was so much easier to work with than the oil sealer we had used the last time. It drys fast so want to keep moving to sustain a wet edge and you can do the whole deck in a few hours, not a few days. I love the sheen it has. I would definitely recommend this product to anyone wondering if it’s worth the extra cost. People actually think we have a new deck and can;t believe it is the same wood deck, with a different sealer.

    This time our deck looks like beautiful furniture and the cost was only about $30 more than what we paid for the cheap sealer. Now we just need them to figure out a way to make a wood sealer that can keep the birds and squirrels off of our deck!

  5. Rated 5 out of 5


    We have a lot of problems with moisture and mold in Hawaii and NANO is the best product we have found to protect wood from it. As a builder working on million $ plus homes all over the islands, we want the best wood protector we can get and this is it. We’ve tried many different products over the years and happily recommend Seal Once to all of our customers and any contractors we work with in the islands. I just wish they had more retailers in the area who sold it, so we could pick-up some locally!

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For customers outside of the United States, please contact our Customer Service department at 1-716-833-9366 to place an order.

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