2) Hardness :70±5 shore a
3) Tensile strength:≥10Mpa
5) Adhesion :≥2.5N/mm
6) Burst pressure ::≥1.2Mpa
7) Aging at elevated temperature :125°×168h , pressure(0.6Mpa) 5 minutes later no leaking/bumps phenomenon
8) Pulse test: environment temperature 85±5°,medium temperature 93±5°,test pressure 0.1bar~2.4bar, frequency 0.25HZ,medium:50%glycol coolant liquid,5000 times no crack.
9) Ozone resistance:(40±2)°×(50±5)pphm×100h,no crack.
10) Vacuum pressure resistance:(100±2)°×30.0kpa×10min,≤30%
We have been doing this job for many years and we have been trying our best to make the good products with the reasonable price. our price is neither the highest nor lowest, but I assure you its the most reasonable. And we very appreciated that our customers support us. All the product are supervised by the special department. The quality is assured.