You can apply wax if you want to add UV protection on top of the clear bra. Even though we usually recommend placing on the XPEL Fusion Ceramic Coating for your UV protection, which lasts for 4 years, instead of having to wax every few months, but waxes are fine to use. Do not use any kind of petroleum-based products on the film. ... No products that contain ABRASIVES, or DYES which will cause the film to become dull.