SEAL-ONCE Nano+Poly Penetrating Wood Sealer with Polyurethane - 1 Gallon. Water-Based Low-VOC waterproofer & Stain for Decks Fences & Log Homes.

SEAL-ONCE NANO+POLY is the safest way to protect & enhance your investment & extend the natural life of wood. This premium water-based wood protector combines proprietary nanotechnology with the strength of polyurethane to provide 360° of protection. Protects up to 10 years on vertical surfaces & 6 years on horizontal with no toxic chemicals making it easy to apply and safe for people pets & plants. Unlike many brands that only form a top-coat NANO+POLY penetrates wood to form a long-lasting water-resistant shield around the wood fibers preventing rot decay mold & mildew. It also stabilizes wood eliminating warping and cupping. With the added POLY NANO+POLY also creates a durable surface coating that protects against wear and tear UV fading and water damage. NANO+POLY is a water-based eco-safe sealer that goes on milky white & dries clear. It creates a UV-stable coating that preserves the natural color of the wood and resists weathering and decay. It is also available in 11