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EXPANDED PTFE Tape: Superior On-Site Sealing with Micro-Porous PTFE Technology

2026-01-13 JOINTEFLON

EXPANDED PTFE Tape is a high-performance, self-adhesive sealing tape produced from 100 % virgin PTFE that has been expanded into a uniform microporous fibrillated structure. This unique architecture combines exceptional conformability, high compressibility, and outstanding chemical resistance, making it the ideal instant gasket-forming solution for flanges, threaded joints, glass-lined nozzles, and irregular or damaged sealing surfaces across chemical, pharmaceutical, food-processing, and petrochemical industries.


EXPANDED PTFE Tape: Superior On-Site Sealing with Micro-Porous PTFE Technology


One of the key advantages of EXPANDED PTFE Tape is its universal chemical inertness. The expanded PTFE matrix is unaffected by strong acids, alkalis, solvents, oxidizers, and corrosive gases, ensuring reliable sealing integrity even in the most aggressive media. Additionally, it maintains full performance from cryogenic –200 °C up to continuous +260 °C, with short excursions to +300 °C, without embrittlement or flow.

The soft, pliable tape conforms instantly to rough, pitted, warped, or non-machined flange faces, creating a tight, low-stress seal that compensates for surface irregularities and reduces bolt torque requirements. Its high creep resistance preserves gasket stress under thermal cycling, vibration, and pressure fluctuations, minimizing leakage risk in pipelines, heat exchangers, reactors, and pumps.

Another advantage is its clean, non-contaminating composition. The tape is free of fillers, pigments, and adhesives, meeting FDA standards. This makes it ideal for ultra-pure water, pharmaceutical API reactors, and food-grade installations where product integrity is critical.


EXPANDED PTFE Tape: Superior On-Site Sealing with Micro-Porous PTFE Technology


EXPANDED PTFE Tape installs quickly—simply peel, wrap, and trim—eliminating the need for pre-cut gaskets or curing time. The self-adhesive backing holds the tape in place during assembly, while the low-friction surface allows easy removal without residue, speeding up maintenance turnarounds. Available in a wide range of thicknesses and widths, it can be used as a universal stock material for emergency repairs or standardized plant-wide sealing.

Overall, EXPANDED PTFE Tape delivers outstanding on-site sealing performance, chemical compatibility, and operational flexibility, making it a reliable, cost-effective solution for rapid, leak-free sealing of virtually any flange or threaded connection.