25% glass-filled Teflon balls combine the inherent properties of PTFE with enhanced mechanical strength and thermal stability due to the glass fiber reinforcement. These balls exhibit a density of 2.25 g/cm³, Shore D60 hardness, and tensile strength of 2100 psi, making them suitable for high-load applications. Their elongation at break (270%) and compressive strength (1000 psi) indicate flexibility under stress, while the flexural strength (1950 psi) ensures structural integrity. The dynamic (0.5) and static (0.12) coefficients of friction highlight their low-friction performance. With an operational temperature range of -328°F to 500°F (-200°C to 260°C), they are ideal for extreme environments.
Key Points Explained:
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Material Composition
- 25% glass-filled PTFE blends PTFE’s chemical resistance with glass fibers for improved mechanical properties. The glass filler increases rigidity and reduces creep compared to pure PTFE.
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Mechanical Properties
- Tensile Strength: 2100 psi – Lower than pure PTFE (2990–4970 psi) but balanced by enhanced dimensional stability.
- Elongation at Break: 270% – Retains ductility despite reinforcement, critical for applications requiring deformation resistance.
- Compressive Strength: 1000 psi – Suitable for bearing or sealing applications under moderate loads.
- Flexural Strength: 1950 psi – Higher than 15% glass-filled variants (2490 psi), indicating better resistance to bending stresses.
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Friction and Wear
- Coefficients: Dynamic (0.5) and static (0.12) are higher than 15% glass-filled versions (0.06 dynamic, 0.05 static), suggesting trade-offs between wear resistance and lubricity.
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Thermal Performance
- Temperature Range: -328°F to 500°F (-200°C to 260°C) – Broader than unfilled PTFE (max 500°F) due to glass fibers improving heat deflection.
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Comparative Advantages
- Versus 15% Glass-Filled: Higher density (2.25 vs. 2.15–2.25 g/cm³) and flexural strength (1950 vs. 2490 psi) but slightly lower tensile strength.
- Versus Unfilled PTFE: Lower elongation (270% vs. 300%+) but superior creep resistance and load-bearing capacity.
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Applications
- Ideal for chemical processing valves, high-temperature bearings, and aerospace components where low friction, thermal stability, and mechanical strength are critical.
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Purchasing Considerations
- Evaluate trade-offs: Higher glass content improves strength but may reduce pure PTFE’s non-stick properties. Verify compatibility with operational temperatures and chemical exposures.
This data-driven breakdown ensures informed decisions for industrial buyers prioritizing performance in harsh conditions.
Summary Table:
| Property | Value |
|---|---|
| Density | 2.25 g/cm³ |
| Shore D Hardness | 60 |
| Tensile Strength | 2100 psi |
| Elongation at Break | 270% |
| Compressive Strength | 1000 psi |
| Flexural Strength | 1950 psi |
| Dynamic Friction (μ) | 0.5 |
| Static Friction (μ) | 0.12 |
| Temperature Range | -328°F to 500°F (-200°C to 260°C) |
Upgrade your high-load or high-temperature applications with 25% glass-filled Teflon balls from KINTEK. Our precision-engineered PTFE components deliver unmatched mechanical strength, thermal stability, and low friction—perfect for semiconductor, aerospace, and industrial uses. Contact us today for custom solutions tailored to your needs!
