Dow Silastic 9280/75E Datasheet Dow Silastic 9280/75E

Information provided by Gluespec
  • Description for Dow Silastic 9280/75E

    Good clarity; easily pigmented; formulated to meet BgVV, XV and FDA regulations.

    *See Terms of Use Below

    Brand Silastic
    Application Type Mold-Making
    1 Part or 2 Part 2-Part
    Material Form Liquid
    Manufacturer Dow
    Chemistry Silicone rubber
    Cure Method Part A/Part B
    Cure Temperature (°C) 120, 200, 200
    Cure Time (min) 10, 240, 0.13 to 0.23
    Viscosity (cPs) 520 (Pa.s)
    Volume Resistivity (O) 4.8e15 (ohms/cm)
    Key Specifications FDA (U.S. Food & Drug Administration) and/or CFIA (Canadian Food Inspection Agency): FDA 21 CFR 177.2600
  • Technical Data for Dow Silastic 9280/75E

    • Application Type
    • 1 Part or 2 Part
      • 2-Part
    • Material Form
      • Liquid
    • Chemistry
    • Application Method
      • Dispenser - Meter mix equipment
    • Cure Method
      • 2-Part Cure - Part A/Part B
    • Key Specifications
      • FDA (U.S. Food & Drug Administration) and/or CFIA (Canadian Food Inspection Agency) : 177.2600 - FDA 21 CFR 177.2600
    • Brand
      • Silastic
    Cure Specs
    Cure Temperature (°C) 120, 200, 200 Test Method
    Cure Time (min) 10, 240, 0.13 to 0.23 Test Method
    Viscosity (cPs) 520 (Pa.s) Test Method
    Work / Pot Time (min) 4,320 Test Method
    Mix Ratio 1:1 (by volume)
    Bond Strength
    Tear Strength (piw) 20 (kN/m), 10 (kN/m) Test Method
    Tensile Strength (psi) 9.0 (Mpa), 9.0 (Mpa) Test Method
    Volume Resistivity (O) 4.8e15 (ohms/cm) Test Method
    Shore A Hardness 74, 77 Test Method
    Elongation (%) 400, 380 Test Method
    Other Properties
    Specific Gravity 1.160 Test Method
    Flash Point (°F) 212.0
    % Solids (%) 100
    Business Information
    Shelf Life Details When stored at or below 32°C (90°F) in original unopened containers, this product has a usable life of 15 months from the date of production.
    Shelf Life Type from the date of production
    Shelf Life (mon) 15
  • Best Practices for Dow Silastic 9280/75E

    *See Terms of Use Below

    1. Mixing

      The A & B components are supplied strained and de-aired to be used as lot matched kits.

      Mix Parts A & B in a 1:1 ratio. Meter Mix equipment which pumps, meters and mixes the two components without the incorporation of air is strongly recommended for production.

    2. Deairing/Degassing

      If air bubbles are entrapped during mixing the moisture must be thoroughly degassed under vacuum.

    3. Curing

      SILASTIC 9280/75E cures rapidly at elevated temperatures. A 2mm cross-section requires 8-14 seconds at 200°C (392°F). The cure time depends on the thickness and the cure temperature used. Cure can be inhibited by contact with certain materials such as amines, sulphur and tin complexes.

    4. Clean-Up

      The uncured silicone can readily be removed by most hydrocarbon solvents. Polar solvents, such as ketones and alcohols, are not suitable.

  • Comparable Materials for Dow Silastic 9280/75E

    *See Terms of Use Below

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Cure Temperature Test Methods
Cure Temperature Cure Time Test Method
120°C Press cure
200°C Post cure
Cure Time Test Methods
Cure Time Test Method
10 min Press cure
240 min Post cure
0.13 to 0.23 min
Viscosity Test Methods
Viscosity Test Method
520 (Pa.s) Y=10.0s-1, Viscosity measured on the Carrimed CSL Viscometer.
Work / Pot Time Test Methods
Work / Pot Time Temperature
4,320 min 25°C
Tensile Strength Test Methods
Tensile Strength Test Method
9.0 (Mpa) ASTM DIN 53504
9.0 (Mpa) ASTM DIN 53504
Tear Strength Test Methods
Tear Strength Test Method
20 (kN/m) ASTM D624B
10 (kN/m)
Volume Resistivity Test Methods
Volume Resistivity Test Method
4.8e15 (ohms/cm) ASTM D257
Elongation Test Methods
Elongation Test Method
400 % DIN 53504
380 % DIN 53504
Shore A Hardness Test Methods
Shore A Hardness Shore Hardness Test Method
74 Hardness/Durometer Test Method
77 DIN 53505
Specific Gravity Test Methods
Specific Gravity Test Method
1.160 DIN 53479