The interior edge of a 2003 Corvette is made of some sort of black plastic. It has a mottled/streaked look. I was hoping to make it a dark consistent black. This what it looks like now.
and another view
So far I've tried Klasse All in One
303 protectant
water
Mother's back to black
Nothing seems to make a difference. Someone called it a water channel and suggested staying away from water based applications
Any suggestions?

and another view

So far I've tried Klasse All in One
303 protectant
water
Mother's back to black
Nothing seems to make a difference. Someone called it a water channel and suggested staying away from water based applications
Any suggestions?
