Non-Post-Cure
Grades that achieve stable properties without post-curing, cutting process time and energy.
Applications
- O-ring
- Roll
- Boot
- Sheet
- Gasket
- Packing
Typical Properties by Grade2 grades
| Grade | Appearance | Specific gravity | PlasticityWilliams | HardnessShore A | Tensile strengthkgf/cm² | Elongation% | Tear strengthkgf/cm | Compression set%, 180℃×22h | Curing agentPHR | CurePress ℃/min · Post ℃/hr |
|---|---|---|---|---|---|---|---|---|---|---|
| NPC 140U | Translucent | 1.10 | 220 | 42 | 80 | 600 | 24 | 13 | SC-8B · 1.0 | 170/10 · 200/4 |
| NPC 180U | Milky white | 1.42 | 260 | 82 | 60 | 100 | 20 | 10 | SC-8B · 1.0 | 170/10 · 200/4 |
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Values are typical measurements based on KS M6518, not specifications, and may vary with curing agent and cure conditions.
Heat & Oil Resistance and Other Properties
| Grade | Linear shrinkage% | Heat aging 250℃×72h | Oil IRM903 150℃×72h | |||||
|---|---|---|---|---|---|---|---|---|
| Hardness Δ | Tensile Δ% | Elongation Δ% | Hardness Δ | Tensile Δ% | Elongation Δ% | Volume Δ% | ||
| NPC 140U | 3.7 | -5 | -25 | -28 | -15 | -58 | -46 | +55 |
| NPC 180U | 2.9 | +5 | -10 | -30 | -15 | -15 | -10 | +30 |
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