SCA-1 Hot-Weather Stone Soundless Cracking Agent SCA-1 Stone Soundless Cracking Agent is a high-performance non-explosive expansive mortar specifically formulated for hot-weather applications where material temperatures range from 25°C to 40°C . Ideal for summer projects, tropical regions, Middle East operations, and hot quarry sites, this grade maintains reliable controlled expansion under elevated ambient conditions. After mixing with clean water at approximately 28–30% by