... : competitive BUTYL RUBBER 1675NThis type of rubber is used for production of tire inner tubes, heating tubes, diaphragms of shaper-vulcanizers, latex of butyl rubber and rubber ... , %, min. 620 Modulus at 400% elongation, MPa, min. 7 Loss of mass at drying, %, max. 0.30 Ash mass content, %, max ...