Description Main Features: Grey etch primer with excellent adhesion to metals Suitable for galvanized steel, electro-zinced steel, aluminum, & polished metals Works on nylon 6, carbon fiber, epoxy, polyester, acrylate, PVC, PC, & ABS Also adheres well to previously painted polyester surfaces & 2K epoxy after sanding Ideal base coat for garage doors, shutters, frames, & copper pipes