Does wax block UV? Today we re-visit my UV testing methods and see if a new approach to testing tells us more about how waxes block UV light. In our new test I pit Chemical Guys Jet Seal against our new testing gear. I utilize a BPI Perfect Vision UV/Photometer III and a Linshang LS162 Transmission Meter to see how much protection our tested wax provides. I then tested all the products from my prior videos. The uv blocking results may shock you!