LET’S RESIN Crystal Clear Epoxy Resin, 32oz Bubbles Free Epoxy Resin, Table Top & Bar Top Casting Resin, Clear Epoxy Resin for Art Crafts. How to eliminate bubbles. Let’s resin casting epoxy resin has fewer bubbles even not use the heat gun/torch, the simple way is to let the resin sit for 10-15 minutes, then pour into the mold.