Looked through the archives but couldn't get a concrete answer, so I figure I'll ask. I just finished hotcoating a board, ~10th board I've glassed, but first time using UV resin. The first side ended up somewhat sticky (not as sticky as lam would've been but too gummy to sand), and I figured it would just cure with more time or that I hadn't given the surfacing agent enough time to rise before exposing it to UV. Second side I gave the surfacing agent more time to rise (~5 min between last brushstroke and UV exposure), but this turned out sticky as well, even after ~2hrs in the sun (full sun ~75-80 degrees).
My question is twofold
1. Anyone know why this happened so that I can avoid it in the furture?
2. What can I do to fix it? Sand through the gum and lose my sanity? Re-hotcoat (looked like it had the shiny waxy hotcoat look so I don't think a second hotcoat would go on good)? Wait on it?
Help is much appreciated, cheers.