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Alloy Wheel Coating - Doc
Has anyone used Protex4 alloy wheel coating?

Developed specifically to protect Alloys from road salts and brake dust , whose residue of carbon fibres and adhesives stick everything to the wheels, Protex4 provides a highly effective stick resistant barrier between the wheel surface and traffic contaminants. The coating provides an easy clean finish for the simple upkeep of good looking wheels.

www.protex4.com/home.html

Alloy Wheel Coating - martint123
I've not heard of that, but find a good coating of normal wax polish and the odd clean works well.