Acetal vs. FR-4 Machining
Comparison of Acetal and FR-4 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 |
| FR-4 |
|---|
| 0.1 |
| 45,000 |
| 2,700 |
| 0.66 |
| -- |
Material Properties
- Low moisture absorption
- High mechanical strength and rigidity
- Machinability
- Good chemical resistance
- Good dimensional stability
- Extremely high mechanical strength
- Good dielectric loss properties
- Good electrical strength properties
- Machinability
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