Aromatic Polyester Filled PTFE
Ekonol® is an aromatic polyester. Aromatic polyester is slightly hydrophilic, so it is preferable to use the material in dry environments.
Welcome to Learning About Aromatic Polyester Filled PTFE
Aromatic Polyester-Filled PTFE (often using Ekonol® filler) is a high-quality, high-performance PTFE compound designed for demanding tribological applications.
Benefits
Aromatic polyester-filled PTFE has a longer service life under high-load and high-speed conditions. It has a very low coefficient of friction and minimises cold flow and deformation under constant mechanical load. Its non-abrasive nature prevents the galling of soft mating surfaces.
Applications
Aromatic polyester-filled PTFE is ideal for hydraulic and pneumatic sealing systems. It is a highly suitable choice of material for self-lubricating bearings and piston rings. It is often used in seal components for both static and dynamic applications.
Physical Properties of Aromatic Polyester Filled PTFE
| Test Items | Test Methods | Unit | 10% Aromatic | 15% Aromatic |
|---|---|---|---|---|
| Density | ASTM D792 | g/cm3 | 2.18 | 2.15 |
| Hardness Shore D | ASTM D2240 | Sh.D | 60 | 58 |
| Tensile strength | ASTM D638 | mpa | 18 | 17 |
| Elongation at break 23°C | ASTM D4894 | % | 260 | 245 |
| Coefficient of static friction | ASTM D1894 | - | 0.16 | 0.18 |
| Thermal conductivity 23°C | DIN 52612 | W/K.m | 0.32 | 0.28 |
| Max water absorption | ASTM D570 | % | 0 | 0 |
