Varathane is the best general sealer for polymer clay. Read about it on The Blue Bottle Tree. I agree- have tried all the others and nothing compares to it - doesn't peel off, less air bubbles, more heat indurance for hot climate etc - JS
She seals her poly beads with Liquitex acrylic polymer varnish. I am falling in love with this product myself - pleased to hear about it being used in more ways. Love My Art Jewelry: How do you Seal your Polymer Clay Beads?
Bake and Bond allows you to attach small detail pieces to a pendant etc. without using pressure which distorts the design! Polymer Clay Supplies - Premo Sculpey, Perfect Pearls, Miniature Food, Friendly Plastic, Alphabet Embossing and More!
We used a polymer clay based on this recipe. It is a less toxic version of fimo that air dries hard and paintable. Polymer Clay 1 large bottle of white glue or roughly 1 C cornstarch 2 TBS mineral oil juice of 1 lemon