Dow Silastic LS-2840

Dow Silastic LS-2840 Datasheet
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  • Description for Dow Silastic LS-2840

    Low compression set; excellent solvent/fluid resistance; retains properties over a wide temperature range.

    *See Terms of Use Below

    Brand Silastic
    Application Type Mold-Making
    1 Part or 2 Part 1 Part
    Material Form Rubber-Crepe
    Industry Powertrain
    Manufacturer Dow
    Chemistry Silicone: Fluorosilicone rubber
    Cure Method Heat
    Cure Temperature (°C) 200
    Cure Time (min) 240
    Color Off White
    Chemical Resistance Fluid
    Relative Solvent Resistance Chemical Resistance: Solvent
    High Temperature Resistance (°C) Excellent

  • Technical Data for Dow Silastic LS-2840

    *See Terms of Use Below

    Overview
    • Application Type
    • 1 Part or 2 Part
      • 1 Part or 2 Part - 1 Part
    • Material Form
      • Other - Rubber-Crepe
    • Industry
      • Powertrain
      • Industrial - Extruded and calendered goods
    • Chemistry
      • Silicone: Fluorosilicone - Fluorosilicone rubber
    • Cure Method
      • Heat
    • Color
      • Off-White - Off White
    • Brand
      • Silastic
    Specifications
    Cure Specs
    Cure Temperature (°C) 200 Test Method
    Cure Time (min) 240 Test Method
    Bond Strength
    Tear Strength (piw) 152 (ppi) Test Method
    Tensile Strength (psi) 1,470 Test Method
    Material Resistance
    Chemical Resistance Fluid
    Relative Solvent Resistance Chemical Resistance: Solvent
    High Temperature Resistance (°C) Excellent
    Hardness
    Shore A Hardness 38 Test Method
    Elongation (%) 5 Test Method
    Other Properties
    Specific Gravity 1.430 Test Method
    Flash Point (°F) 213.8
    Business Information
    Shelf Life Details When stored at or below 50°C (122°F) in the original unopened containers, this product has a usable life of 36 months from the date of production.
    Shelf Life Type from the date of production
    Shelf Life (mon) 36

  • Best Practices for Dow Silastic LS-2840

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  • Comparable Materials for Dow Silastic LS-2840

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    Spec Engine® Results

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Cure Temperature Test Methods
Cure Temperature Cure Time Test Method
200°C Post cure
Cure Time Test Methods
Cure Time Test Method
240 min Post cure
Tensile Strength Test Methods
Tensile Strength Test Method
1,470 psi ASTM D412 DIE C
Tear Strength Test Methods
Tear Strength Test Method
152 (ppi) ASTM D624, Tear B
Elongation Test Methods
Elongation Test Method
5 % ASTM D412 DIE C
Shore A Hardness Test Methods
Shore A Hardness Shore Hardness Test Method
38 Hardness/Durometer Test Method
Specific Gravity Test Methods
Specific Gravity Test Method
1.430 ASTM D792