SRG was developed to fill/repair concrete floor surface imperfections such as air holes, popouts, surface pitting, scratches, and gouges, etc. SRG is designed for use in commercial or retail polished concrete floors where final building temperatures are 32°F (0°C) to +120°F (49°C). SRG is a two-component, 95% solids structural polyurethane/polyurea hybrid. When cured, SRG is a rigid structural polymer with a Shore D Hardness of 70-75. Each 10 Gallon Kit comes with free color packs. Purchase additional color pack/s if more than five are needed.