Materials · 星辰 7102
OMS7102
White low-metal-ion FFKM for etch and CVD where ionic contamination is critical — up to 300 °C.
Properties
ASTM methods, stated conditions
- Hardness
- 75 Shore A (ASTM D2240)
- Tensile strength
- 20.2 MPa (ASTM D412)
- Elongation at break
- 195 % (ASTM D412)
- Compression set
- 20 % (ASTM D395 Method B, 70 h @ 250 °C, 25 % deflection, Type B)
- Service temperature
- -10 °C to +300 °C
- Process compatibility
- Dry + Wet
- Seal type
- Static
- Colour
- White
Read the compression set with its condition — 23 % measured at 300 °C tells you nothing about performance at 200 °C. Every figure on this site is published with the temperature and duration it was measured at, so you can compare grades on the same basis.
Typical applications
CVD, dry / wet etch, ashing, gas inlets and KF fittings
Comparable grades
Cross-reference
| Grade | Hardness | Service temp. | Comp. set | Why we pair them |
|---|---|---|---|---|
| Kalrez® 4079 | 75 Shore A | −19 to +316 °C | 14 % | Same hardness class; their published compression set is tighter and upper temperature higher. Compare on cost and lead time. |
| Isolast® J9677 | 75 Shore A | −10 to +300 °C | — | Closest match on the service temperature range and static-only duty. |
Parameter-level comparison only — This pairing is drawn from publicly published hardness, temperature and compression-set figures and is a screening aid, not an equivalence claim. Sealing performance depends on your actual media, temperature, pressure, motion and gland design. Validate with a sample before switching an approved part.
Other grades
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