metal spray paint
I wish to change the color of a shiny stainless light fixture to an iron color. To experiment I purchases a large shiny circle screw, fine sanded it, used Rust-O 2x flat grey primer for wood, metal, plastic. Sprayed one coat then in about 1 hour sprayed their Metalic Paint and primer in one for any surface. 24 hours later I can scrape the paint off easily with my finger nail. What am I doing wrong?