Liluan Technology - Expanded PTFE Sheet
  • Expanded PTFE Sheet
  • Expanded PTFE Sheet
  • Expanded PTFE Sheet
  • Expanded PTFE Sheet
  • Expanded PTFE Sheet
  • Expanded PTFE Sheet

Expanded PTFE Sheet

No.LL-GST-01
Expanded PTFE sheet, also known as expanded polytetrafluoroethylene sheet or flexible PTFE sheet, is made from pure polytetrafluoroethylene (PTFE) resin through a special process. It boasts excellent flexibility and formability, along with high tensile strength, creep resistance, cold flow resistance, and corrosion resistance.
  • Expanded PTFE Sheet
  • Expanded PTFE Sheet
  • Expanded PTFE Sheet

Description



Core Features

  • 100% Pure Virgin PTFE: Manufactured through a unique expansion process that creates a highly fibrillated, multi-directional structure while maintaining 100% chemical purity.

  • Soft & Pliable Texture: Unlike rigid PTFE, ePTFE is soft and "marshmallow-like," allowing it to conform easily to irregular, worn, or damaged flange surfaces.

  • Universal Chemical Resistance: Completely inert to all chemicals from pH 0-14, including aggressive acids, alkalis, and solvents (except for molten alkali metals and elemental fluorine).

  • Zero Cold Flow (Creep Resistance): The expanded fibrous structure effectively eliminates the "cold flow" and creep problems common with standard PTFE, ensuring long-term seal stability without retightening.



Technical Advantages

  • Superior Compressibility: Requires significantly lower bolt torque to achieve a tight seal, making it the ideal choice for fragile flanges (glass-lined, plastic, or FRP).

  • Extreme Temperature Resilience: Operates reliably in a wide temperature range from cryogenic -240°C to 260°C.

  • Excellent Sealing Integrity: Its multi-directional strength prevents the gasket from getting thinner under pressure, providing a robust barrier against both liquids and gases.

  • FDA & USP Compliance: Naturally non-toxic, odorless, and non-contaminating, meeting strict requirements for the pharmaceutical and food industries.



Common Applications

  • Fragile & Large Flanges: Sealing for glass-lined reactors, plastic piping, and large-diameter ducting where high bolt loads are not possible.

  • Chemical & Petrochemical: Handling ultra-pure or highly corrosive media in heat exchangers, columns, and tank covers.

  • Pharmaceutical & Biotech: Clean-room sealing applications where zero-contamination and FDA compliance are mandatory.

  • Damaged Equipment: Providing a reliable seal on old or pitted flange faces that standard gaskets cannot seal.



Headquartered in Ma'anshan City — a national civilized city on the banks of the Yangtze River — Mer-Eagle Industry Co., Ltd. (Ma'anshan) serves as the headquarters of Ma'anshan Liluan Technology Co., Ltd. The company covers approximately 30,000 square meters and specializes in the R&D, production, sales, and installation of mid-to-high-end thermal insulation materials, industrial special fasteners (including graphite packing), and special metal surface treatment agents.
Mer-Eagle holds international ISO "three-in-one" management system certification (quality, environment, and occupational health & safety) and has been recognized as a Provincial High-Tech Enterprise and an Anhui Province Quality Trustworthy Enterprise.
With 20 years of dedicated research, an in-house R&D center, and academic collaboration with Taiyuan University of Technology, Mer-Eagle has secured 15 national patents. Its core rock wool products meet the standards of leading markets in Europe and the United States, and are distributed both domestically and internationally.
Guided by the philosophy of "Technology First, Quality-Oriented, Service Supreme", Mer-Eagle is committed to delivering excellence to partners worldwide.