This 2-gallon can of Virtual Green Chroma Key Paint from Pro Cyc may be applied to walls or cycloramas in homes or professional photo studios to create a flat, non-glossy chroma key green surface for use in green screen photography. This lead- and mercury-free paint may be used without primer, but optimal results are achieved when Pro Cyc's Gray Bonding Primer is applied first, enabling the paint to dry on tough-to-paint surfaces.