Bronze filled PTFE sheet combines superior mechanical strength, improved dimensional stability, and enhanced thermal conductivity compared to standard PTFE grades. This composite material, made from 60% Virgin PTFE and 40% bronze powder, excels in applications requiring wear resistance under heavy compressive forces and effective dissipation of static electricity and heat. While it operates across a wide temperature range with minimal cold creep, its chemical resistance is lower than other PTFE variants due to the bronze filler.
Among PTFE compounds, the bronze filled grade is notably dense, with a specific gravity of 3.14 g/cm³. Its kinetic coefficient of friction is comparable to the glass filled and stainless steel filled alternatives. Its minimal deformation under load makes it particularly suitable for unlubricated bearing applications.
Henry Gallacher offers precision conversion of bronze filled PTFE sheets into bespoke components such as gaskets, piston rings, and high-performance slide plates, utilising advanced in-house CNC machining. This material is ideal for alternating, oscillating, and helical motion applications where chemical resistance is not critical. For details on our machining capabilities, please refer to our plastic machining services.
Applications
Commonly used for high-performance shaft bearings, slide plates, and gaskets, bronze filled PTFE is also frequently fabricated into bearing, piston, and wear rings.
Key Features
- Operating temperature range: -200°C to +260°C.
- Outstanding performance at both low and high temperatures.
- Chemical resistance is lower than other PTFE grades; susceptible to acids and alkali metals.
- Enhanced mechanical strength and dimensional stability.
- Effective static dissipation with a volume resistivity of 106 Ohms.
- Excellent sliding and non-stick characteristics.
- Low coefficient of friction.
- Improved thermal conductivity.
Availability