Acetal vs. Teflon PTFE/FEP Machining
Comparison of Acetal and Teflon PTFE/FEP Property Values
| Acetal Homopolymer | Acetal Copolymer |
|---|
| 0.25 | 0.2 |
| 10,000 | 9,800 |
| 420 | 370,000 |
| 6.8 | 6.1 |
| -- | -- |
| Material |
|---|
| Water Absorption Rating |
| Tensile Strength |
| Flexural Modulus |
| Coefficient of Linear Thermal Expansion |
| Dielectric Strength |
| Unfilled | 35% Glass Filled | 24% Carbon Filled |
|---|
| < 0.01 | 0.02 | 0.05 |
| 3,900 | 2,100 | 1,900 |
| 72,000 | 190,000 | 160,000 |
| 7.5 | 6.4 | 6.0 |
| -- | -- | -- |
Material Properties
- Low moisture absorption
- High mechanical strength and rigidity
- Machinability
- Good chemical resistance
- Good dimensional stability
- Excellent dielectric properties
- Inertness to most chemicals
- High heat and chemical resistance
- Very low coeffiecient of friction
- Excellent radiation resistance
- Zero moisture absorption
- Relatively insensitive to power frequency
- Machinability
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