15% Glass Filled PTFE
The 15% glass-filled PTFE can be made into sheets, rods, and tubes. Adding glass fibres to PTFE enhances compressive characteristics by up to 40% and increases creep and wear resistance over regular PTFE.
Welcome to Learning About 15% Glass-Filled PTFE
The 15% glass-filled PTFE is a plastic composite material made from 85% PTFE and 15% glass fibres. The most popular filler for PTFE is glass fibre, which improves the material’s wear and creep resistance.
The most common glass fibre percentages in PTFE are 4%, 8%, 10%, 15%, 20%, and 25%. Other fillers include bronze, carbon, Ekonol, polyimide, and PEEK.
Advantages
The FDA-approved grade of glass-filled PTFE is available. It exhibits little deformation under load, minimal thermal expansion, high compressive strength, and excellent wear characteristics. It has exceptional temperature resistance, which enables it to perform well in oxidising environments.
Application
Medical equipment such as mandrels can benefit from the glass-filled PTFE’s excellent stiffness, wear resistance, and dimensional stability. Other applications include piston rings, gaskets, valve seats, shaft seals, seals, and electrical and chemical components.
The food, mechanical engineering, oil and gas, electronics, and wind energy industries all make use of it.
Physical Properties of Glass-Filled PTFE
| Test Items | Test Methods | Unit | 10% Glass | 15% Glass | 25% Glass |
|---|---|---|---|---|---|
| Density | ASTM D792 | g/cm3 | 2.2 | 2.22 | 2.24 |
| Hardness Shore D | ASTM D2240 | Sh.D | 59 | 60 | 62 |
| Tensile strength | ASTM D638 | mpa | 23 | 22 | 21 |
| Elongation at break 23°C | ASTM D638 | % | 250 | 230 | 210 |
| Coefficient of static friction | ASTM D1894 | - | 0.15 | 0.16 | 0.18 |
| Thermal conductivity 23°C | DIN 52612 | W/K.m | 0.28 | 0.39 | 0.46 |
| Max water absorption | ASTM D570 | % | 0.013 | 0.015 | 0.02 |
