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GN3025‐SPCC
summary: The material is a new sealing material that uniformly coats a rubber layer on the surface of the metal substrate through a specific production process
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summary
The material is a new sealing material, which is uniformly coated with a rubber layer on the surface of the metal substrate through a specific production process; The material has good heat resistance, durability and a very low pressure set. Compared to traditional non-metallic sealing materials, this material has a relatively long service life, so it is often used in environments with higher pressures, higher temperatures and more demanding sealing requirements.
Technical indicators
project |
Indicator requirements |
|
Rubber type |
nitrile rubber |
|
Metal substrate |
SPCC |
|
appearance |
Matte semi-black, smooth |
|
Total thickness(mm) |
0.30±0.02 |
|
Metal substrate Thickness(mm) |
0.25±0.01 |
|
Rubber layer thickness(mm) |
0.025±0.005(Single-sided) |
|
Maximum operating temperature(°C) |
≤150℃ |
|
Rubber adhesion ASTM-D3359 |
100% no shedding |
|
Adhesive layer pull-off strength (Mpa) ASTM-D4151-09 |
≥1.4 |
|
Base hardness (HV) |
120 ~ 160 |
|
Unburned test |
Rubber hardness(A) ASTM D-2240 |
70 ~ 80 |
Tensile strength (Mpa) ASTM D-412 |
≥8 |
|
Elongation (%) ASTM D-412 |
≥200 |
|
Heat aging 70 hours 100℃ |
Change in hardness (%) ASTM D-573 |
—15 ~ 15 |
Change in tensile strength (%) ASTM D-573 |
—30 ~ 30 |
|
IRM903# oil, dipped Oil volume change rate (%) ASTM D-471 |
≤40 |
Rubber
strength
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