Most waxes, polishes advertise that their product contains UV protection . But, does a product have to contain a certain percentage before they can advertise this? Pinncale e-mailed me that their Souveran contains UV protection but I read somewhere that the Souveran UV contains a minimal amount. Another product I use is Klasse AIO and it contains much more UV protection according to the article I read. Is there an independant source that rates waxes, polishes according to the amount of UV protection?