Kaxite PTFE extruded rod is produced by paste extrusion — PTFE resin is blended with a lubricant, pre-formed into a billet and forced through a die to form a continuous rod that is then dried and sintered. This continuous process delivers long, straight rods with consistent diameter — the preferred raw material for high-volume CNC machining of small-to-medium diameter PTFE parts.
Manufactured in Ningbo, China by Kaxite Sealing. Diameter range Ø3–50 mm, standard lengths 1000 mm and 2000 mm. Available in virgin PTFE (natural white) and filled grades — 15-25% glass fibre, carbon-graphite, bronze and modified PTFE (TFM). FDA 21 CFR 177.1550, RoHS and REACH certified.
PTFE fine powder blended with a hydrocarbon lubricant.
Compressed into a cylindrical pre-form billet.
Forced through a die to form a continuous rod.
Lubricant removed in a controlled drying oven.
Fused at high temperature for full density.
Continuous paste extrusion — long rods, tight tolerance, lower unit-length cost. Best for high-volume machining of small-to-medium diameter parts.
Batch compression molding + sintering — reaches much larger diameters and slightly higher core density. Best for large machined parts and short segments.
| Property | Value | Notes |
|---|---|---|
| Material | 100% Virgin PTFE | No fillers, no additives |
| Production method | Paste extrusion | Dried & sintered |
| Diameter range | Ø3 – Ø50 mm | Molded up to Ø500 mm |
| Diameter tolerance | ±0.20 – ±0.50 mm | Varies with diameter |
| Standard lengths | 1000 / 2000 mm | Cut-to-length on request |
| Density | 2.14 – 2.20 g/cm³ | ASTM D792 |
| Service temperature | -200°C to +260°C | Continuous service |
| Tensile strength | ≥ 25 MPa | ASTM D638 |
| Elongation at break | ≥ 200% | ASTM D638 |
| Dielectric strength | > 45 kV/mm | ASTM D149 |
| Dielectric constant | 2.1 | ASTM D150, 10³ Hz |
| Coefficient of friction | 0.04 | Lowest of any known solid |
| Chemical resistance | pH 0 – 14 | Universal industrial media |
| Water absorption | < 0.01% | ASTM D570 |
| Colour | Natural white | Filled grades vary |
| Certifications | FDA / RoHS / REACH | 21 CFR 177.1550 |
CNC-machined PTFE seals, O-rings, back-up rings and custom gaskets from extruded rod stock.
Ball valve seats, butterfly valve liners, plug valve components requiring chemical inertness.
Dielectric strength >45 kV/mm — insulators, standoffs, bushings, high-frequency components.
0.04 friction coefficient, self-lubricating — bushings, slide bearings, wear rings.
Sample probes, stirrer shafts, fittings — non-contaminating and chemically inert.
Ultra-clean machined parts for wafer handling and gas delivery systems.
FDA-compliant machined parts for pumps, mixers, filling nozzles and sterile equipment.
Machined pipe adapters, plugs and fittings for aggressive chemical service.
Extruded rod as raw stock for high-volume CNC production — less waste, less setup time.
| Step | Information you provide | Our response |
|---|---|---|
| 1 | Diameter required (mm) | Tolerance confirmed |
| 2 | Length — standard or cut-to-size | Cutting feasibility |
| 3 | Material grade (virgin or filled) | Grade recommendation |
| 4 | Application and media | Grade confirmation |
| 5 | Quantity (pieces or metres) | Unit price and lead time |
| 6 | Machined parts? Send drawing | CNC quote within 24 hours |
| 7 | Documentation requirements | Material cert / SGS / 3rd party |
| 8 | Sample request | Free sample for qualified buyers |
Send diameter, length, material grade and quantity — our engineers reply with pricing, lead time and sample availability within 24 hours.
Related products: PTFE Molded Rod Extrusion PTFE Rods PTFE Rods PTFE Tube PTFE Sheet
Address
No 432 Zhenhai Middle Road, Luotuo Street, Zhenhai District, Ningbo City, Zhejiang China
