BackColor Pastes PRO Stock Colors Poliya offers high performance PRO stock colors pastes for consistent GRP production. Light Stock Colors Light stock colors provides clean tones of different white and pastel shades. Transparent Colors It is possible to use transparent colors with opaque pigments for different color tones. Clear Button Colors Clear button colors are specially designed for button industry. Metallic and Pearlescent Colors Metallic pigments can only be used with spray applications. Custom Colors Color pastes can be adjusted according to RAL, Pantone, NCS standards and specific customer requirements.