I'm trying to make a mold of my EF headlight lens which is made of glass. Before I just go laying resin and fiberglass directly onto the glass, is there a mold release gel/spray that I can/should use? I've found plenty of stuff for pro shops that they sell by the gallon, but none of it says it works for glass. Anyone done this before?
Thanks

 

Or better yet.... does anyone make an insert already?

 

i think you can use vasoline. im sure there are cheep alternatives than a pro shop has to offer. maybe if you masked the whole thing with painters tape, or spray foam on the glass with a release agent of course and then when its dry carefully remove the foam from the lens so that the foam is now a negative mold and then lay your fiberglass in there to make the insert that you want. that is what im going to try out when i get to that stage in my crx build. it would hurt to try right? peace