The Company
Perfect Defense Technology The Perfect ePTFE Membrane Made for All.
Established in 2009, Perfect Defense (Perfect Defense Technology Co., Ltd.) stands as a global leader in supplying top-quality ePTFE membrane products. Our company, located in the heart of the Central Taiwan Science Park, is renowned for its cutting-edge technologies that enhance the material’s strength. We take immense pride in offering nanoporous PTFE membranes that surpass the performance of renowned brands worldwide.
With our comprehensive solutions, we cater to a wide range of industries, including per-sonal and home care, air and water purification systems, functional waterproof fabrics, CBRN applications, and advanced electronics such as earphones, outdoor lighting, automo-bile headlights, and notably, the green hydrogen energy power system.
At Perfect Defense, our unwavering commitment is to deliver superior PTFE products. We continuously strive to provide our customers with exceptional technical solutions that ad-dress critical applications across various industries. Through our innovative methods, we aim to foster long-term relationships and serve as your trusted business partner.
Experience the excellence of Perfect Defense and discover the difference our PTFE products can make in your industry. Contact us today to explore how we can meet your specific needs.
★★★ The major contribution made by Perfect Defense in ePTFE evolution.
1938Year
Polytetrafluoroethylene discovered by Roy J. Plunkett at DuPont.
1945Year
Kinetic Chemicals patented polytetrafluoroethylene and registered the "Teflon" trademark.
1969Year
Robert W. Gore discovered the first-generation expanded PTFE, or ePTFE.
1978Year
A Polyurethane coating was added to the first-gen ePTFE to improve durability, however it led to a decrease in air permeability.
2009Year
Perfect Defense introduced the 3rd-gen ePTFE membrane：With cutting-edge technology, Perfect Defense invented a new membrane that can withhold hydrostatic pressure, allows air permeability, and is fire retardant.
Perfect Defense introduced the 4th-gen ePTFE membrane -Biochemical Protection：he birth of the 4th-gen membrane that has been used in CBRN fabrics has met US military standard tests of blister agents (HD mustard gas) <4μg/cm2 and nerve agents (GD, VX) <10μg/cm. 
2009Year
Perfect Defense launched the innovative Perfion™ , a revolutionary Reinforced PEM. This distinctive thin yet robust perfluorinated proton exchange membrane delivers higher power density, lower swelling rate, high chemical and mechanical stability that outperforms any state-of-the-art brands.