Chemraz 657

Category: Perfluoroelastomer , Perfluoroelastomer
Manufacturer: Greene, Tweed & Co.
Trademark: Chemraz
Fillers: -
Ports: Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms FOB, CIF, DAP, DAT, DDP
PDF: f29yYD_Chemraz-657.pdf
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Specifically developed to meet the demands of aggressive dry plasma systems, Chemraz® 657 perfluoroelastomer's unique formulation provides enhanced plasma resistance and minimal contamination resulting in less downtime and higher wafer processing yields. Recommended primarily for both static and dynamic oxide etch wafer processing applications, Chemraz 657 remains stable at service temperatures up to 280°C (536°F) with excursions to 300°C (572°F).
General Information
Features
  • High Purity
  • Low Hardness
  • Soft
Uses
  • Seals
  • Valves/Valve Parts
Appearance
  • Translucent
Forms
  • Pellets
PhysicalNominal ValueUnit
Specific Gravity 2.03g/cm³
HardnessNominal ValueUnit
Durometer Hardness (Shore A)85
ElastomersNominal ValueUnitTest Method
Tensile Stress ASTM D412
    50% Strain 4.45MPa
    100% Strain 9.55MPa
Tensile Strength (Break)15.2MPaASTM D412
Tensile Elongation (Break)150%ASTM D412
Compression Set (96°C, 70 hr)29%ASTM D395
ThermalNominal ValueUnit
Service Temperature -40 to 280°C
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