Bit of a back story. The original face plate on the sink unit in my van, and the indicator light panel, were really ratty with creeping rust. So some years ago I sanded and painted them with the only paint I had in hand, satin black. Sure it had a rat rod look to it, but when I bought a used kitchen unit a few months ago I swapped in the main panel. It's in fairly good condition, but a little faded and i think more matte than it was originally.

It didn't come with the indicator light panel so today I painted my black one ( and I actually sand blasted it first) Krylon espresso brown. It looks good but it's not a close match to main panel. It's deeper in colour and it's glossier. It's much closer to the vinyl trim colour.

I wonder, am I right in assuming the stock brown fades and chalks a little with age? And has anyone found a treatment short of a re-spray that restores the colour to some degree? 

Thanks 

Alistair