FYI epoxy primer in a spray can from NAPA
might be some other places to get it but there is now an epoxy primer in a spray can. (will adhere to galvanized metal too).
price: $22 per can!!! ouch. bought a gallon of epoxy primer and qt of cat for $80! i am going to paint my truck again. this time with something non-porous. going for the Ragged (also called Dazzle) Camoflauge look till the war is over. (currently is olive drab, it's in my photo album). bye bye