Seal-Once™ Waterproof Wood Protector - Eco Friendly
Category: Coatings - wood

green stain/sealer product formulated for exterior/interior use on all properly prepared, unsealed wood surfaces including bamboo

Typical Use:

Decks, Railings, Shingles, Shake Roofs, Siding, Fences, Planters, Outdoor Furniture, Play Structures, Log Homes & Structural Framing

Apparent use of Nanotechnology: polymer nanoparticles
Reason for Inclusion:

"Applying his extensive knowledge of chemistry, Mike created a unique polymer using nanoparticles that had the ability to easily penetrate the wood, creating a clear flexible film that was not only waterproof from the surface, but also breathable and impervious to salts and chlorides." (see 'The Story Behind Seal Once' under 'About Us' on the company website)

The company home page also references "unique polymer nanoparticles" used for their Seal-Once brand.

Trade: Carpenters
Safety Data Sheet (SDS):

available online (under 'Technical Info')