This helps the wood to fight against wood decay and turning grey due to water penetration. The Sunrays which bring the harmful UV rays are reflected by the zinc oxide particles present in the DEFY Extreme wood stain. If you reduce the size of the zinc particle to a nano level you could see it through the human eye.
In this stain, the particles are distributed at an astonishing 30 trillion per square inch in the surface area. This provides excellent protection against the sun. This is similar to humans using sunscreen. It is semi-transparent and VOC compliant which gives a great finish to your wood. It comes in cedar tone, natural pine, light walnut, driftwood gray, redwood, butternut, and clear finish.