Selecting the right Ekonol filled PTFE tube manufacturer is a decision that directly affects pump reliability, maintenance costs, and total equipment uptime. Ekonol—an aromatic polyester filler—reinforces virgin PTFE by increasing hardness, reducing creep, and improving wear resistance without compromising chemical inertness. Our manufacturing process begins with high-purity PTFE fine powder and precisely controlled Ekonol content, followed by isostatic molding and sintering to produce tubes with exceptional uniformity. For pump seal applications, the 15% Ekonol PTFE tube for pump seal provides the optimal density and machinability required for dynamic O-rings, V-packings, and lip seals. If your equipment handles abrasive media such as cement slurry, drilling mud, or paper stock, our aromatic polyester filled PTFE tubing high wear grade delivers a wear factor up to three times lower than unfilled PTFE, which means longer service life and fewer unplanned shutdowns. In static sealing positions where compressive loads are sustained for months, the Ekonol PTFE tube low creep material significantly reduces cold flow, holding dimensional tolerance under bolt loads that would deform conventional PTFE. For OEMs and maintenance teams that require a single material for multiple demanding duties, the high performance Ekonol PTFE tube combines low friction, wide temperature range, and excellent load-bearing capacity. We offer outside diameters from 4 mm to 300 mm, wall thicknesses from 0.5 mm to 25 mm, and lengths up to 1000 mm for molded tubes or continuous coils for small profiles. Every tube is 100% inspected for surface defects, dimensional accuracy, and filler dispersion, ensuring that each shipment meets the same tight tolerances as your original equipment specifications.
Ekonol filled PTFE tubes are engineered for engineers, plant managers, and equipment builders who need predictable sealing and wear performance. The starting point is a compounded resin in which 15%, 20%, or 25% by weight of micronized Ekonol particles is uniformly distributed throughout the PTFE matrix. This architecture raises compressive strength, lowers deformation under load, and creates a harder bearing surface that resists scoring and extrusion. Typical mechanical properties include a density of 1.90–2.10 g/cm³, tensile strength of 18–25 MPa, elongation at break of 180–260%, and Shore D hardness of 60–65. The coefficient of friction against polished steel ranges from 0.08 to 0.12 under dry running conditions. Ekonol filled PTFE tubes operate continuously from -200°C to +260°C and withstand short-term exposure up to +280°C without losing structural integrity. Because the Ekonol filler is non-abrasive, these tubes do not chew up stainless steel shafts, titanium pump sleeves, or aluminum housings—a major advantage over glass-filled or carbon-filled alternatives. In terms of chemical resistance, Ekonol filled PTFE tubes are unaffected by nearly all industrial solvents, acids, caustics, and hydrocarbons from pH 0 to 14. This makes them a safe choice for chemical dosing pumps, refrigerant compressors, and marine stern tube seals. Tolerances are held to ±0.05 mm for standard sizes and ±0.03 mm for precision-ground seal components. Custom cut lengths, chamfered ends, slit coils, and color coding are available for high-volume OEM programs. Quality assurance includes ultrasonic flaw detection, density measurement, hardness testing, and dimensional inspection on every production lot. Traceability is maintained from resin lot to finished tube, and material certificates or PPAP documentation can be supplied on request.
| Parameter | Specification | Remarks |
|---|---|---|
| Filler type | Ekonol (aromatic polyester) | 15%, 20%, 25% by weight |
| Color | Dark brown / black | Uniform dispersion |
| Density | 1.90 – 2.10 g/cm³ | ASTM D792 |
| Tensile strength | 18 – 25 MPa | ASTM D4894 |
| Elongation at break | 180 – 260% | ASTM D4894 |
| Hardness | 60 – 65 Shore D | ASTM D2240 |
| Coefficient of friction | 0.08 – 0.12 | Dry vs. polished steel |
| Service temperature | -200°C to +260°C | Short-term +280°C |
| Creep resistance | 40–60% improvement over virgin PTFE | Compressive load test |
| Wear factor K | 1.5 – 3.0 × 10⁻⁶ mm³/N·m | Dry sliding |
| Outside diameter range | 4 mm – 300 mm | Custom available |
| Wall thickness | 0.5 mm – 25 mm | Custom machining |
