HIT.8100-1 is a product code for the High Teck 8100-1 4:1 National Rule Universal Clearcoat, a professional-grade, high-solids urethane clearcoat designed for automotive refinishing. It provides a durable, high-gloss finish resistant to chips and fading and is compliant with National Rule VOC (Volatile Organic Compound) regulations. The clearcoat requires mixing with an activator at a 4:1 ratio and is formulated for overall panel repairs.