15% glass-filled teflon balls combine the inherent properties of Teflon (PTFE) with enhanced mechanical strength due to glass reinforcement. These balls exhibit a density range of 2.15–2.25 g/cm³, hardness of 60–64 Shore D, and tensile strength between 2490–3700 psi. Their elongation at break (250–280%) and compressive strength (853–925 psi) make them suitable for dynamic load applications. The low coefficients of friction (static: 0.050; dynamic: 0.060) ensure smooth operation in bearings or seals. With an extreme temperature range of -436°F to 518°F (-260°C to 270°C), they outperform unfilled PTFE in thermal stability while maintaining chemical resistance. The Izod impact strength (14.0–15.5 J/m) highlights their durability under sudden stresses.
Key Points Explained:
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Density and Hardness
- Density: 2.15–2.25 g/cm³ (slightly higher than unfilled PTFE due to glass fibers).
- Hardness: 60–64 Shore D (improved over unfilled PTFE’s ~55 Shore D), enhancing wear resistance.
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Mechanical Strength
- Tensile Strength: 2490–3700 psi (lower than unfilled PTFE’s 2990–4970 psi but more consistent under load).
- Compressive Strength: 853–925 psi (critical for high-pressure sealing applications).
- Flexural/Impact Strength: Izod impact 14.0–15.5 J/m (balances brittleness from glass with PTFE’s flexibility).
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Elongation and Friction
- Elongation at Break: 250–280% (retains PTFE’s ductility despite reinforcement).
- Coefficients of Friction: Static (0.050) and dynamic (0.060) are lower than unfilled PTFE (0.110), ideal for low-wear motion systems.
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Thermal Performance
- Operating Range: -436°F to 518°F (-260°C to 270°C) — broader than 25% glass-filled variants (-328°F to 500°F).
- Melting Point: Unchanged from pure PTFE (621°F/327°C), but heat deflection improves with glass support.
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Comparative Advantages
- vs. Unfilled PTFE: Better creep resistance and dimensional stability.
- vs. 25% Glass-Filled: Lower friction and wider temperature range, though slightly reduced mechanical strength.
For purchasers, these properties make 15% glass-filled Teflon balls optimal for aerospace, chemical processing, or cryogenic systems where extreme temperatures and mechanical stress coexist. The glass filler mitigates PTFE’s cold-flow tendency while preserving its non-stick and dielectric qualities.
Summary Table:
| Property | Value Range | Key Benefit |
|---|---|---|
| Density | 2.15–2.25 g/cm³ | Slightly higher than unfilled PTFE, improving structural integrity. |
| Hardness (Shore D) | 60–64 | Enhanced wear resistance for longer lifespan. |
| Tensile Strength | 2490–3700 psi | Consistent performance under dynamic loads. |
| Compressive Strength | 853–925 psi | Ideal for high-pressure sealing applications. |
| Elongation at Break | 250–280% | Retains ductility despite glass reinforcement. |
| Coefficient of Friction | Static: 0.050; Dynamic: 0.060 | Smoother operation in bearings/seals than unfilled PTFE. |
| Temperature Range | -436°F to 518°F (-260°C to 270°C) | Broader range than 25% glass-filled variants, suitable for extreme environments. |
| Izod Impact Strength | 14.0–15.5 J/m | Balances glass-reinforced durability with PTFE’s flexibility. |
Upgrade your high-stress or extreme-temperature applications with 15% glass-filled Teflon balls!
KINTEK specializes in precision-engineered PTFE components, including custom glass-filled Teflon balls for aerospace, chemical processing, and cryogenic systems. Our solutions combine superior thermal stability, low friction, and mechanical resilience to outperform standard PTFE.
Contact our experts today to discuss your project requirements or request a quote for tailored solutions.
