Good UV resistant high temperature paint that will not faint?

Oops meant to say fade.. Not faint. I am restoring an older Weber Gold C and I need to paint over some rusted section of the frame after rust treatment. I have used some rustoleum paint on another project in the past but that paint faded over the years and now looks more grey than black.
Is there a good UV resistant high temperature paint which stays black? Just wonder what people are using here and what they can recommend.

Thx
Stefan

I have been using Rustoleum 2X paint on the frames and Rustoleum High heat flat and High Heat Ultra semi gloss on the cook box and hood end caps. So far, so good, but one year isn't a good test probably.