Modified Bitumen Roofing Grade.Description: High molecular weight REXtac, ethylene copolymer, and FDA compliant Features: High viscosity and low crystallinity Applications: Component of modified bitumen roofing systems Other Properties: Ring and Ball Softening Point (ASTM E 28): 138°C. Needle Penetration (ASTM D 1321): 26 mm. Melt Density (190°C; Huntsman Method): 0.74 g/cc. Flashpoint, COC (ASTM D 93): >235°C. Information provided by Huntsman Corporation. |