Identification method of EPDM sealing strip | Â | |
 | Imported EPDM(Raw rubber) | Recycled rubber (recycled materials) |
Material differences | Imported DuPont EPDM | Recycled rubber from the rubber waste |
Physical identification | Soft texture, good flexibility, scalability, and light weight, smooth surface | Tend to be more rigid, elastic differential, heavier than the seals in same dimensions |
Odor identification | Not sharp, has a slight rubber odor, a few days will be naturally volatile | Sharp, pungent odor, even in combination smell, volatile is slow |
Service life | Long service life, general environment can use for decade years | Short life, aging, harden, crack occurs in few years |
Human hazard | no harm to human body | Contain toxic substances |
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