(1) Full of elasticity and resilience;
(2) Appropriate mechanical strength, including expansion strength, elongation and tear strength, etc.
(3) Stable performance, in the medium is not easy to swell, thermal shrinkage effect (joule effect) is small
(4) Easy to process and shape, and can keep the precise size.
(5) non-corrosive contact surface, non-polluting media, etc.
