All the WPC product will fade a little after it is exposed to the sun and undergoes the weather. The anti-UV additives are added to reduce the fading and it will be much more suitable for outdoor application. During the first 3 months, the color may fade a little with an approximated percentage of 5% to 10%, this will not affect the overall effect. After that, the color will stay at a stable level through the lifetime of the product.