Penofin Architectural Grade Transparent Hardwood Coating delivers the highest level of quality, protection and beauty. Designed to provide a protective yet breathable water and UV resistant barrier that enhances and preserves the rich exotic look of hardwoods. Utilizing an innovative blend of deep penetrating modified natural oils, cutting-edge waterborne alkyd-urethane hybrid resin technology combined with polymerized silicone for superior surface and internal water repellency. This advanced combination of technologies allows for natural oils and resins to penetrate deep into the fibers of the wood without blocking the pores, allowing for maximum internal and external water repellency while maintaining breathability. Supreme level UV resistance through the use of a multi-phase UV protection package composed of high grade trans-oxide pigments, Nano-technology UV blockers and UV photo-light stabilizers. This durable yet flexible alkyd-urethane hybrid system delivers 2 year protection on decks and 4 year protection on fences and siding.