Compressive Strength (ASTM C579) 8,500 psi Tensile Strength (ASTM C307) 1,400 psi Flexural Strength (ASTM C580) 2,700 psi Hardness, Shore D (ASTM D2240) 85-90 Impact Resistance (ASTM D2794) 160 Epoxies & Polyaspartics