99.9% Isopropyl Alcohol also known as IPA can be used in a number of ways when working with Epoxy. It can be spritzed onto the surface of Epoxy (as it cures) – this will have the effect of breaking the surface tension, allowing air bubbles trapped within the Epoxy to pop. It can also be mixed with metallic powders, allowing them to be spritzed as a liquid onto the Epoxy. This interaction can give a great textured look to your colours.