PVC vs. Vespel Machining
Comparison of PVC and Vespel Property Values
| PVC | CPVC |
|---|
| 0 | 0.04 |
| 7,500 | 8,200 |
| 481,000 | 410,000 |
| 6.1 | 3.7 |
| 544 | 1,250 |
| Material |
|---|
| Water Absorption Rating |
| Tensile Strength |
| Flexural Modulus |
| Coefficient of Linear Thermal Expansion |
| Dielectric Strength |
| Unfilled |
15% Graphite |
40% Graphite |
10% PTFE,
15% Graphite |
15% Moly |
| 0.24* |
0.19* |
0.14* |
0.21* |
0.23* |
| 12,500* |
9,500* |
7,500* |
6,500* |
8,200* |
| -- |
-- |
-- |
-- |
-- |
| 3.0 |
2.7 |
2.1 |
3.0 |
2.9 |
| 560 |
250 |
-- |
-- |
-- |
Material Properties
- Excellent insulating properties
- Low permeability
- Fire resistant
- Durable and light
- Good electrical properties
- Chemically inert
- Tasteless, odorless and nontoxic
- Dimensional stability
- High impact strength
- Continuous performance at up to 600°F
- No special machining equipment required
- Dimensionally stable
- Operates at very high PVs
- Does not become brittle even at subzero temperatures
- Machinability
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