Will vinyl discolour?
• White and light coloured vinyl (PVC) is typically formulated using Ti02 that protects the vinyl (PVC) from harmful effects of the sun’s UV rays. As long as your fence or rail is kept clean, with a periodic wash from a garden hose, it will not turn yellow. • Titanium DiOxide. This is the most common ingredient used for Ultra Violet ray protection. TiO2 is a white pigment that reacts with water and oxygen. Water, or moisture in the air is necessary for this product to do its job effectively. It is not noxious, in fact, TiO2 is commonly used as a preservative or colourant in baked goods like the little white donuts you buy at the corner store.
