I'm looking for a material with high elasticity (>600% elongation) that can whistand mechanical cycling (at least 100,000 cycles.) It will be used as a thin wall (1/64" - 1/32") tube with 3/8" ID. The air pressure in the tube changes within 1-5 psi range. The tube has to be able to expend and contract in diametre by at least 500%.
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