ComposiMold Bubble Buster Bubble Buster reduces surface tension and bubble formation while making your mold. Directions: Liberally spray Bubble Buster over your original part prior to pouring your melted ComposiMold. Pay attention to details and undercuts. Wipe away any pooling. Visit www.ComposiMold.comComposiMold Bubble Buster Bubble Buster reduces surface tension and bubble formation while making your mold. Directions: Liberally spray Bubble Buster over your original part prior to pouring your melted ComposiMold. Pay attention to details and undercuts. Wipe away any pooling. Visit www.ComposiMold.com