how do i keep matt black wheels from fading?
 

i have matt black alloys and they are going abit faded and certain polishes and waxes dont work as it makes them go white??

dont polish them, and just respray them mask off clean and spray, it will all blend in

You can buy polish and wax for matt paints its made by swiss vax i use it on some of my clients cars.

I had a bad experience waxing my freshly painted matt black alloys - it left all white residue behind (I was using el cheapo turtle wax for the job so as not to waste my Collinite 845)

I wont use the turtle wax for this job again!

Various sealants (gtech, nanolex etc) can be used which will protect them, with a small amount of gloss (not alot) added.

You do need to make sure that the cleaner (if using shampoo to clean your wheels with for instance) dont contain any gloss enhancer.