Composi Mold-Bubble-Buster-6fl-oz-177ml-Composimold-CMBB06-P-This-Composi Mold-Bubble-Buster-has-been-designed-to-reduce-bubble-formation-when-making-a-mould-The-PVA-mixture-works-by-reducing-the-surface-tension-so-bubbles-rise-up-&-away-from-the-mould-surface-Easy-to-use-just-spray-your-original-part-with-Bubble-Buster-after-applying-a-mould-release-before-pouring-Composi Mold-over-to-make-your-mould-P-Composimold-CMBB06-Bubble-Buster-6fl-oz-177ml-