FR-4 vs. Ultem Machining
Comparison of FR-4 and Ultem Property Values
| FR-4 |
|---|
| 0.1 |
| 45,000 |
| 2,700 |
| 0.66 |
| -- |
| Material |
|---|
| Water Absorption Rating |
| Tensile Strength |
| Flexural Modulus |
| Coefficient of Linear Thermal Expansion |
| Dielectric Strength |
| Ultem |
|---|
| 0.25 |
| 16,500 |
| 500,000 |
| 3.1 |
| -- |
Material Properties
- Extremely high mechanical strength
- Good dielectric loss properties
- Good electrical strength properties
- Machinability
- Extremely strong and stiff
- FDA compliant grades available
- High chemical resistance
- High dielectric strength
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