The Opal Iridescent Collection is a iridescent pearl pigment in the form of liquid. It gives shimmer / galaxy effect to your resin pieces.
You will get different coloring effect when you mix it with different resin. You get a marble like effect when you mix it with fast curing resin like UV resin. You get a more plain and even color if you mix it with 2 Part Epoxy.
This comes in a squeeze bottle with small opening tip, so you are able to drop it into your epoxy easily.