F375B Medium Mooney Bisphenol Copolymer Precompound, Hardness 77
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Data Sheet
- Material Type: Medium viscosity incorporated cure fluoroelastomer precompound with bisphenol curing
- Features: Excellent metal bonding performance and adhesive flow, suitable for transfer molding and compression molding
- Applications: Oil seals, bearing shims, and other compression-molded components
- Working Temperature Range: Maximum 230℃ and minimum -17℃
- Lab Testing Curing Condition:
Primary cure: 177℃ × 6min
Post cure: 230℃ × 16h
Original Properties
| Property | Unit | Test Method | Typical Value |
| Fluorine Content | % | -- | 66 |
| Specific Gravity | g/cm³ | ASTM D297 | 1.82 |
| Color | -- | -- | White |
| Solubility | -- | -- | Ketones and esters |
| Mooney Viscosity ML (1 10@121℃) | Mu | ASTM D1646 | 34 |
Test Formulation
| Formulation | Phr | Grade |
| F375B | 100 | F375B |
| MgO | 3 | MgO 150# |
| Ca(OH)2 | 6 | NICC 5000 |
| N990/MT N990 | 30 | Thermax® N990 |
Rheological Properties
| MDR 100cpm, 0.5°Arc, 6 minutes, 177°C | ||
| Property | Unit | Typical Value |
| ML, Minimum Torque | N.M | 0.13 |
| MH, Maximum Torque | N.M | 1.93 |
| Scorch Time (ts₂) | -- | 1’12 |
| Cure Time (tc90) | -- | 2’35 |
Mechanical Properties
| Property | Unit | Test Method | Typical Value |
| Hardness (Shore A) | pt | ASTM D2240 | 77 |
| Tensile Strength | MPa | ASTM D412 | 14.60 |
| Modulus 100% | % | ASTM D412 | 5.3 |
| Elongation at Break | % | ASTM D412 | 245 |
Manufacturing Process