Agreed. This is what I use.Kiwi neutral shoe polish. Smear it on the metal and buff it up. I usually do that a couple of times.
Don't fool around and end up in trouble and get a proper release from any where that sells fiber glass products in spray or paint on. Tens bucks will last you a life time. The fiberglass boat builders don't use shoe polish or sheep fat.I have some JB weld here, what makes a good release agent?
The fiberglass boat builders don't use shoe polish or sheep fat.