Spaz Stix 309 Metallic Silver Backer for Candy Paint 3.5oz Spray Spaz Stix Metallic Silver is an opaque color that can be used as a primary color in your paint scheme, and is specifically formulated to perform perfectly as a backer option for the Spaz Stix "Candy" line of paints. Backing Candy colors with Metallic Silver will produce a deep, bright, finish with metallic sparkles. If you are looking for that classic candy metal-flake finish, this is the backer we recommend. All Spaz Stix paints are formulated for use on polycarbonate material. Specifically, clear bodies for R/C cars and trucks. Be sure to test compatibility when using on other surfaces. Enamel based formula.