Try a product called Top Secret TS100 Cear. It's a one part epoxy that has a two year shelf life. This stuff used to be top secret. They used it on tanks, aircraft carriers and aircraft radomes. Since declassification, the company that makes it changed their name to Top Secret. Being a one part epoxy, it is oxygen activated. I dip all my lures in it then just put the lid back on the jar. It runs about $29.95/qt