Products

Copper filled PTFE tubing delivers outstanding wear resistance in dry-running, high-load, and abrasive service environments. The uniform dispersion of copper powder inside the PTFE matrix sharply reduces cold flow and creep, while improving dimensional stability under compressive load. Compared with unfilled PTFE, copper filled PTFE tubing offers roughly 20 to 40 times lower wear volume in sliding contact against steel or hardened counterfaces. This performance makes it a practical replacement for bronze bearings in chemical pumps, food processing equipment, and hydraulic actuators where lubrication is undesirable or impossible. Our engineering team routinely specifies copper filled PTFE tubing alongside complementary filled compounds such as bronze filled PTFE tube for industrial bushing and bronze PTFE tube high load capacity. Because we operate as a dedicated PTFE bronze filled tube manufacturer and an experienced metal filled PTFE tube supplier, every copper filled PTFE tube is produced from traceable raw materials and inspected for filler distribution, density, and wear performance before shipment.

Copper Filled PTFE Tubing is manufactured with high-purity electrolytic copper powder dispersed through virgin PTFE resin. The copper content is adjustable from 10% to 40% by weight, with 25% and 40% being the most common grades for severe wear and high thermal load applications. The tubing can be ram extruded or compression molded into rod, tube, and near-net shapes, then sintered in precision-controlled ovens to achieve maximum crystallinity and mechanical strength. Copper particles function as hard bearing points that support the PTFE matrix, reducing the wear rate to as low as 0.5 × 10⁻⁶ mm³/N·m in dry sliding tests. At the same time, copper raises thermal conductivity to 0.45–0.75 W/m·K, allowing frictional heat to escape from the contact zone instead of building up at the surface. This thermal path is critical for high-speed rotating bushings and reciprocating wear rings where heat accumulation would otherwise soften the polymer and accelerate material loss. Copper Filled PTFE Tubing is also suitable for applications requiring limited electrical conductivity or static dissipation, since the copper network lowers surface resistivity compared with pure PTFE.

Dimensions and typical properties are listed below.

• Available inner diameters: 2 mm to 200 mm (0.079 in to 7.87 in)
• Wall thickness: 0.5 mm to 25 mm (0.020 in to 0.984 in)
• Standard length: 100 mm to 1000 mm; custom lengths up to 3000 mm on request
• Diameter tolerance: ±0.05 mm for small tubes, ±0.3 mm for large diameters
• Wall thickness tolerance: ±0.05 mm to ±0.15 mm depending on size
• Surface finish: Ra 0.8 µm or better on machined surfaces
• Color: dark copper brown
• Grades: 10%, 25%, 40% copper filled PTFE by weight