I powder paint and cure my jigs and lead baits and Seal Coat has never worked for me. I have the same issue, it has a small section come off and then I can actually peel it off by hand. I use Devcon 2 Ton Epoxy, do not use the 5 minute, it is not the same stuff and you have to apply it with a brush, it is too thick to dip. Devcon 2 Ton is much strong and will last, the Seal Coat I think is fine for crappie and panfish sized heads that aren't heavy and banging hard on rocks and substrate. Now to explain why I use the top coat in the first place is basically to seal 3D eyes most of the time but I will also use it on heads without eyes when I use my own custom glitter colors, I think the topcoat gives the glitter a brighter flash.