High-performance semi-crystalline fluoropolymers

Halar® ECTFE is a partially fluorinated semi-crystalline polymer offering a unique combination of properties for highly demanding industries.  It is widely used in anti-corrosion applications as a lining or in self-supporting constructions (piping). Its excellent fire resistance properties and chemical resistance make Halar® ECTFE a first choice in wire and cable applications. Halar® ECTFE offers purity, surface smoothness, chemical resistance and fire resistance  which are key characteristics in the semiconductor and photovoltaic markets.

Key Features

  • Outstanding  chemical, permeation and fire resistance

  • Low permeability

  • Excellent weatherability

  • High purity and surface smoothness

  • Excellent release properties

  • Good abrasion resistance

 

Processing

Halar® ECTFE is a melt-processable fluoropolymer  that can be handled by conventional techniques, such as, extrusion, compression molding, injection molding and rotational molding and lining

 

Typical Properties

Property Test Method Units Halar® 
Melt Processable
Melting point, min. ASTM D3418 °C 240-245
Specific gravity ASTM D792 °C 1.68
Water absorption, 
24h @ 23°C
ASTM D570 % <0.1
Tensile stress 
at yield @ 23°C
ASTM D638 
50mm/mm
MPa 30-32
Tensile stress 
at break @ 23°C
ASTM D638 
50mm/mm
MPa 40-57
Tensile Modulus ASTM D638  
1mm/min
MPa 1,400-2,100
IZOD impact 
notched V 10 mm @ 23°C
ASTM D256 J/m no break
Taber abrasion resistance, 
CS-17 wheel, 9.81 N load
ASTM D4060  mg/1000 rev 25-35
Friction coefficient, static/dynamic ASTM D1894   0.1-0.2
Volume resistivity ASTM D257 Ω.cm 10^16
Linear thermal expansion coefficient ASTM D696 10-6/K 100
Architectural Membranes

High performance films made of Halar® ECTFE are widely used as architectural membranes, thanks to their unique properties:

  • Transparent & Light – Halar® ECTFE film is lightweight and provides excellent light transmittance.
  • Superior Durability – Highly clear and light-transparent, offers extended long-term stability (more than 20 years) when exposed to sunlight and atmospheric events. Fire resistant approved, it exhibits both chemical resistance and barrier properties.
  • Self-cleaning and Anti-fouling – Thanks to its low surface tension and smooth surface, it offers very limited adhesiveness to dust and dirt, both of which are easily washable with minimal rain and wind.
  • Eco-friendly - Some Halar® ECTFE thin films are recyclable, allowing heavy and breakable rigid-glass replacement while offering significant weight reduction as well as flexibility and freedom of design.
Chemical Processing Industry (CPI)

Halar® ECTFE offers its excellent chemical and permeability resistance to CPI applications including: High performance coatings; Filtration & separation; Pump diaphragms and filter components; Gas separation membranes; Linings; Fluid and gas handling applications.

Chemical Resistant Membranes

Halar® ECTFE offers outstanding chemical resistance over a broad temperature range and is stable at pH levels from 1 to 14. Because of its exceptional chemical resistance, the material cannot be processed using solution phase inversion. Instead, it must be processed at temperatures close to its melting point (200 –240°C) using a TIPS process for hollow fibers. Two grades having different molecular weights and melt temperatures are available.

Frontsheet Films

Halar® ECTFE films are UV stable and optically clear with more than 90% transmission of light in the visible spectrum, while combining excellent fire resistance properties with very good mechanical performance. Halar® ECTFE films exhibit significantly lower permeation rate to water vapor than ETFE. PV modules made with Halar® ECTFE film are exceptionally durable and meet the toughest industry requirements.

Oil & Gas Coatings, Linings, Jacketing

Halar® ECTFE offers it's excellent chemical and permeation resistance to Oil & Gas applications, including: Powder coatings; Sheet lining; Extruded liners; Dual laminates; Electromechanical cable jacketing; Umbilicals; and applications requiring exposure to Supercricital CO2.

Plumbing Pipes and Valves for Industrial Systems

Halar® ECTFE is a partially fluorinated melt-processable polymer that fills the performance gap between PVDF and fully fluorinated polymers. Its exceptional resistance to oxidizers makes it suitable for piping applications in even the harshest chemical environments. Plumbing applications for Halar® ECTFE include Pipes and Valves for Industrial Systems.

Protective Linings

Protective linings in piping, tanks and other vessels fabricated with Halar® ECTFE provide excellent resistance to extreme chemicals and temperatures. Lining options include sheet lining, extruded lining, rotational lining, powder coating or FRP dual laminate.

Semicon Coatings and Linings

Halar® ECTFE delivers exceptional results in semiconductor environments. It is used as a coating and/or lining material in exhaust duct, vessels and process equipment. Halar® ECTFE powder coatings have been used successfully for fire safety and corrosion protection of exhaust duct systems that must meet the FM4922 fire safety standard. Halar® ECTFE coated ductwork offers exceptional surface smoothness reducing the risk of contamination buildup and corrosion.

Wire & Cable Jacketing

Halar® ECTFE offers excellent weatherability, chemical and thermal resistance for durable jacketing.