Creative Expressions - Cosmic Shimmer Metallic Gilding Polish Pearl Lustre - Creative Expressions Gilding Wax is a coloured polish medium that allows a metallic sheen to be added to card, lace, chipboard, baked polymer clay and other craft surfaces. Gilding Polish is available in a variety of shades and can be used through masks to create backgrounds, as well as for highlighting embossed patterns and embellishments. It has its own sponge applicator in the lid but can be applied by finger, cloth, roller or even stamps.