Description

Ethene, Tetrafluoro-, Polymer With 1,1-Difluoroethene is a high-performance fluoropolymer known for its exceptional chemical resistance, thermal stability, and excellent electrical insulation properties. This material is critical for demanding applications where reliability under extreme conditions is non-negotiable. It is primarily sought by manufacturers in the chemical processing, semiconductor, and high-purity fluid handling industries for components like seals, gaskets, tubing, and linings.

Application

• Manufacturing of chemical-resistant seals, gaskets, and O-rings for pumps, valves, and reactors.
• Production of high-purity fluid handling components (tubing, liners, diaphragms) for semiconductor and pharmaceutical processing.
• Wire and cable insulation for demanding environments requiring superior dielectric strength and flame resistance.
• Fabrication of corrosion-resistant linings and coatings for tanks, vessels, and pipes in aggressive chemical service.
• Critical components in aerospace and automotive systems exposed to fuels, oils, and extreme temperatures.
• Membranes and filtration materials for aggressive chemical filtration applications.

Basic Information

Product Name	Ethene, Tetrafluoro-, Polymer With 1,1-Difluoroethene
CAS No.	25684-76-8
Molecular Formula	(C2F4)x(C2H2F2)y
Molecular Weight	Polymer - varies by grade
Synonyms	Ethylene Tetrafluoroethylene Copolymer; ETFE; Poly(ethylene-alt-tetrafluoroethylene); Tefzel® (DuPont trade name); Fluon® ETFE; 1,1,2,2-Tetrafluoroethylene / 1,1-Difluoroethylene Copolymer; Fluoropolymer ETFE; F-40 Resin
EINECS	Contact for details

Quality Control

Our ETFE copolymer is manufactured under strict quality management systems. Each batch is tested against rigorous specifications to ensure consistent performance in thermal, mechanical, and chemical properties. Certificates of Analysis (COA) detailing key parameters such as melt flow index, thermal stability, and purity are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents and heat sources. Ensure the storage area is clean to prevent contamination of the polymer pellets or powder.

Specification

Item	Specification
Appearance	White pellets or powder
Identification (IR)	Complies
Melting Point (DSC)	255 - 275 °C
Melt Flow Rate	Grade Dependent (g/10 min)
Tensile Strength	> 40 MPa
Elongation at Break	> 200 %
Dielectric Strength	> 80 kV/mm
Ash Content	< 0.1 %

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.