The seals are used for pneumatic gages in automotive and truck applications where long-term life, temperature variation, and resistance to aging are an important considerations. Liquid-silicone rubber properties for grades ASTM DZZ40 durometer is Shore A of 20 to 80 and a tensile strength for ASTM D412 of 1.15 to 1.75 kpsi. These grades have heat resistance to 180°C, good flexibility down to 45°C, excellent electricalinsulating properties, and resist UV radiation and weathering. No material preprocessing is necessary.
Minnesota Rubber QMR Plastics Group, 1100 Xenium Lane N, Minneapolis, MN 55441, (952) 927-1400, mnrubber.com
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