Product Review

DEFY Composite Deck Sealer is an extremely durable clear finish that helps to prevent the return of black stains on composite decks and protect against the damaging effects of water, fungi, and UV radiation on composite wood surfaces. This V.O.C.-compliant, water-based product is fortified with zinc nano-particles, a natural deterrent to recurring black algae stains. There are over 30 TRILLION of these zinc nano-particles per square inch that protect your composite wood from the sun's harmful UV rays, protecting your composite deck from color fade, moisture, and fungal growth.