Is there such a thing as transparent polymer clay?
No polymer clay is truly transparent, due to limitations in polymer chemistry. Several clay brands offer a “translucent” or “transparent” color which looks white before firing, and after firing has a milky appearance. Some clay artists use very thin sheets of translucent clay over colored designs to get partial transparency in their designs – the thinner the clay, the more translucent it is. Sanding and buffing the clay also increases its translucency. Some clay artists use other substances, such as acrylic resin or glass marbles, along with clay in their pieces to obtain a true transparent effect.
