Re: I'm doing a car 3m vinyl wrap
Just closing the chapter here. 3 m has tested a clear coat over the wrap and now approves it. It's Valspar High Gloss Clear Enamel. I spent a week masking, spraying and wet sanding; followed by rubing compound, buffing and black wax kit. Pics are ready and the wrap shines well now.
This photo effect highlights the product names: