DiamondClear Windshield Repair Resin HV - 15cc Formulated to have the same refractive index as the glass which adds a clear look to the cracks of the windshield break once the resin has been cured. Diamond Clear Resins are the industry standard for windshield repair bonding. UV inhibitors that prevent yellowing from occurring over time. High viscosity for hot temperatures 85 plus degrees Fahrenheit. BSI tested for quality. 15cc bottle produces approximately 100 windshield repairs.