Cernit Sparkling mica powder can be used on polymer clay (all brands) with a brush or directly with your finger, before baking. Once baked, simply apply varnish or resin to create unique works of art! Cernit Sparking comes in four types: Metallic, Interference, Diamond & Duo! Metallic: Creates metallic reflections on any polymer clay surface. Interference: Creates colored, iridescent reflections. Diamond: Creates diamond like sparkles! Duo: Creates colored, iridescent reflections that change color as it moves. Each container has 5g of amazing color(s)! Cernit Sparkling Powder