Oxidation water stain on black window trim
#2
Member
If that is the painted black trim like on my C43, I would go at that just like any other painted surface. I've had really good luck with using an aggressive polish like Meguiar's 105 applied by a microfiber applicator. I followup with sealant just like I do on paint. I'd be interested in what caused that. Can I ask what you are washing your car with?