+x Mark59 - 4/4/2019 8:51:59 AMHiI've been using Glass Cast 50 for a couple of projects and I seem to get lots of air bubbles in the set resin. It looks great when poured.I mixed by weight, clean mixing cups, stirred for 4 minutes and used a heat gun to remove surface bubbles. The room was kept at 20cThe picture is a side view of the layer.Any ideas what I'm doing wrong?bubbles.