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Tefzel™ 280 is a copolymer oftetrafluoroethylene andhexafluoropropylene. This meltprocessible fluoropolymer exhibitsexcellent resistance to heat, wearand chemicals.

Polymer Name: Ethylene Tetrafluoroethylene Copolymer (ETFE)

Flexural Modulus: 1172.1 - 1172.1 MPa

Technical Data Sheet
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Knowde Enhanced TDS

Identification & Functionality

Plastics & Elastomers Functions
Technologies

Features & Benefits

PRODUCT BENEFITS
  • Temperature range: -150°F to +300°F
  • Negligible moisture absorption
  • High resistance to outdoor weathering
  • Chemically inert to most industrial chemicals and solvents
  • Exceptional dielectric insulation properties
  • Rugged, good abrasive resistance and impact strength
  • Compatible with hot air welding equipment
  • Radiation and heat sterilization resistant

Applications & Uses

Plastics & Elastomers End Uses
TYPICAL APPLICATIONS
  • Pump housings and pipe linings
  • Impellers and abrasive slurries
  • Fluid handling and chemical processing
  • Wet bench equipment
  • Oxygen respirator components
  • Military / defense equipment and components
  • Food processing equipment
  • Radomes

Properties

Flame Rating
Physical Form
Mechanical Properties
ValueUnitsTest Method / Conditions
Melt Flow Rate4g/10 minD3159
Specific Gravity1.7g/cm3D792
Water Absorption (24 hr.)0.007%D570
Tensile Strength (23°C)6700psiD638
Ultimate Elongation (23°C)300%D638
Durometer Hardness72Shore DD2240
Impact Strength (23°C, Notched Izod)No breakJ/mD256
Flexural Modulus (23°C)170000psiD790
Coefficient of Friction0.3 - 0.4D1894
Thermal Properties
ValueUnitsTest Method / Conditions
FlammabilityV-0UL 94
Melting Point255 - 280°CD3418
Limiting Oxygen Index30 - 32%D2863
Upper Service Temperature150%
Linear Coefficient of Expansion (0°C to 100°C)13.3 x 10-5°CD696
Electrical Properties
ValueUnitsTest Method / Conditions
Surface Resistivitymin. 10^15ohm-sqD257
Dielectric Strength (10 mil film)1800Volts/milD149
Dielectric Constant (23°C, 1 MHz)2.5 - 2.6D1531
Volume Resistivity2.5 - 2.6ohm-cmD257
Dissipation Factor (23°C, 1 MHz)0.0072D1531

Regulatory & Compliance

Certifications & Compliance
Quality Standards
COMPLIANCES
  • 3A Sanitary Standard 20-17
  • FDA compliant per 21 CFR-177.1550

Technical Details & Test Data

MATERIAL CLASS
  • ASTM D 3159 Type 1, Grade 1
  • USP Class VI (may be used in contact with food up to +250°F)