CerakoteTM H-146 C1 C2 Pencil Hardness (ASTM D3363) Maximum: 9h 9h 9h 7h Adhesion Cross-Cut Tape (ASTM D3359) Maximum: 5b 5b 5b 5b Mandrel Bend (ASTM D522) % elongation capable without coating failure* 32% 32% 32% Impact (ASTM D2794) (inch-lbs) 160 160 140 * 32% elongation