06/01/2026
Standard PTFE offers excellent chemical resistance and low friction, making it a reliable solution across a wide range of industrial environments. Expanded PTFE (ePTFE), on the other hand, provides added flexibility and conformability, helping create a stronger seal on uneven or damaged fl**ge surfaces. Expanded PTFE is also an excellent choice with its low seating stress for FRP (fiberglass reinforced pipe) and HDPE (high density polyethylene) pipe where lower bolt loads are commonly used. Choosing the right material depends on factors like pressure, temperature, media compatibility, and fl**ge condition. Understanding the difference can help improve sealing performance and reduce the risk of leaks or downtime.