Quadrant Engineering Plastic Products (Quadrant EPP, Lenzburg / Switzerland; www.qplas.com) has launched PTFE “Fluorosint 135” to provide improved performance in durability and longevity in seals, bearings and washers used in fluid processing. The material combines low coefficients of friction, linear thermal expansion and wear rate and is claimed to outperform other filled PTFE compounds to offer protection against wear and breakdown for machines, even at extreme temperatures and pressures.

The material can be used at temperatures of up to 232°C and tests indicate that the coefficients of friction, linear thermal expansion and deformation under load are improved by 30-50% compared with other compounds. “Fluorosint 135” is chemically inert, protects components and reduces the risk of malfunction due to corrosive chemical attacks, making it ideal for applications in chemical processing in addition to more general fluid processing environments, the company said.

The material has been developed to improve the performance of compressor piston rings, rider bands, and packing seals used in pump, valve and compressor wear parts. It is available in a wide range of rod, tube, and sheet sizes.