Recently I started painting the engine in my 72 Polara, in the past I've always used Mopar brand paint but the Blue paint is impossible to find. A friend recommended Hirsch brand automotive paint, the problem I'm running into is the paint will not dry on anything made of rubber, (valve cover grommets, spark plug looms.) My friend had never had a problem in the past but when he painted his engine ( Hirsch Street Hemi Orange) he ran into the same problem. Just wondering if anybody here has had the same issue. I'm going to clean the valve cover grommets and prime then paint to see if that solves the problem.