BackColor Pastes Transparent Colors It is possible to use transparent colors with opaque pigments for different color tones. Light Stock Colors Light stock colors provides clean tones of different white and pastel shades. PRO Stock Colors Poliya offers high performance PRO stock colors pastes for consistent GRP production. Clear Button Colors Clear button colors are specially designed for button industry. Metallic and Pearlescent Colors This group of pigments give a reflective effect which varies depending on the material and light source. Custom Colors Color pastes can be adjusted according to RAL, Pantone, NCS standards and specific customer requirements.