Its relatively cold here. 60 degrees ish and im using a fast cure hardener. Working time 15min at 80 degrees. Its being mixed in the garage at around 60 degrees so working time is much longer.

I mix it, put it on the part and hit it with a heat gun and a quick torch over. This gets rid of any air bubbles to the naked eye. I then put it inside of a heat controlled box at 90 degrees till its fully cured the next day. My only guess is that air bubbles are still in the epoxy and are dissipating roughly around the same time as the epoxy cures so it doesnt have time to self level.

I assume the fix for this is to warm my epoxy up to a good 90 degrees or so and then mix and then hit with a heat gun to get rid of air bubbles on top. Any thoughts?

https://preview.redd.it/cdh0rh5gmbtc1.jpg?width=1512&format=pjpg&auto=webp&s=5eb03b486f7a0e2616a42b368418d3e4a4d2aeaf