Bostik 7538 General Purpose Epoxy

Bostik 7538 General Purpose Epoxy Datasheet
  • Description for Bostik 7538 General Purpose Epoxy

    A structural adhesive with high shear strength, good electrical properties, and excellent environmental resistance. It has good adhesion to metals, wood, reinforced plastics and masonry products.

    *See Terms of Use Below

    Application Type Bond
    1 Part or 2 Part 2 Part
    Material Form Liquid
    Substrate Ceramics, Metal, Reinforced Plastics, Rubber, Wood, Steel
    Industry General purpose
    Manufacturer Bostik
    Chemistry Epoxy
    Cure Method Resin/Hardener
    Viscosity (cPs) 40,000 to 55,000
    Color Green
    Chemical Resistance Good Inorganic Acids, Excellent Alkalis, Good Hydraulics Acids
    Relative Solvent Resistance Chemical Resistance: Excellent Solvents
    High Temperature Resistance (°C) 99
    Low Temperature Resistance (°C) -51
    Key Specifications Mil-Spec (United States Military Standard): Conforms to MIL-A-52194-A; Meets the Requirements of MMM-A-134, Type II
  • Technical Data for Bostik 7538 General Purpose Epoxy

    Overview
    • Application Type
    • 1 Part or 2 Part
      • 1 Part or 2 Part - 2 Part
    • Material Form
      • Liquid
    • Substrate
    • Industry
      • General Purpose
    • Chemistry
    • Application Method
      • Dispenser - dual barrel syringe
    • Cure Method
      • 2-Part Cure - Resin/Hardener
    • Color
      • Green
    • Key Specifications
      • Mil-Spec (United States Military Standard): A-52194-A - Conforms to MIL-A-52194-A; Meets the Requirements of MMM-A-134, Type II
      • Mil-Spec (United States Military Standard): MMM-A-134 - Conforms to MIL-A-52194-A; Meets the Requirements of MMM-A-134, Type II
    Specifications
    Cure Specs
    Viscosity (cPs) 40,000 to 55,000 Test Method
    Mix Ratio 1:1 (by volume)
    Bond Strength
    Structural/Load-Bearing Structural
    Peel Strength (piw) 3 (lbs/lineal in.) Test Method
    Shear Strength (psi) High, 3,000, 2,000, 3,000, 500 Test Method
    Impact Strength (psi) 0.5 (ft.lbs./inch) Test Method
    Compressive Strength (psi) 11,000
    Material Resistance
    Chemical Resistance Good Inorganic Acids, Excellent Alkalis, Good Hydraulics Acids
    Relative Solvent Resistance Chemical Resistance: Excellent Solvents
    Environmental Resistance Excellent environmental resistance
    High Temperature Resistance (°C) 99
    Low Temperature Resistance (°C) -51
    Conductivity
    Volume Resistivity (O) 10(12) (cm)
    Hardness
    Shore D Hardness 80, 20, 70, 80 Test Method
    Elongation (%) 2 Test Method
    Other Properties
    Specific Gravity 1.400
    Coefficient of Thermal Expansion (CTE) 40e-6
    Business Information
    Shelf Life Details For optimum shelf-life of these products, store @ 50~90°F (10~32°C). Storing at lower temperatures causes a temporary increase in viscosity. The ICC shipping classification is “Adhesives NOI”.;The maximum shelf-life is 2 (two) years from date of manufacture (“DoM”). Bostik may, in its distribution literature or in other written or verbal communications, state the shelf-life as “one (1) year from time of shipment to the original purchaser” with the intention that this allows for a reasonable period of time the product may be stocked by a distributor while still maintaining an acceptable shelf-life of at least 1 year.
    Shelf Life Temperature (°F) 50 to 90
    Shelf Life Type from date of manufacture
    Shelf Life (mon) 24
  • Best Practices for Bostik 7538 General Purpose Epoxy

    *See Terms of Use Below

    1. Mixing

      Resin and hardener are metered automatically in proper ratio, mixed in the static mixer and dispensed with pinpoint accuracy. No measuring, mixing or waste

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Viscosity Test Methods
Viscosity Temperature
40,000 to 55,000 cPs 20°C
Work / Pot Time Test Methods
Work / Pot Time Test Method
Shear Strength Test Methods
Shear Strength Substrate Test Temperature
High
3,000 psi Steel
2,000 psi -54°C
3,000 psi 24°C
500 psi 82°C
Peel Strength Test Methods
Peel Strength Type Test Temperature
3 (lbs/lineal in.) T-Peel Strength 24°C
Impact Strength Test Methods
Impact Strength Test Method
0.5 (ft.lbs./inch) Izod, of notch
Elongation Test Methods
Elongation Test Method
2 % Elongation @ break
Shore D Hardness Test Methods
Shore D Hardness Shore Hardness Test Method
80 after full cure
20 after cure time @ 68°F, after 6 hrs
70 after cure time @ 68°F, after 12 hrs
80 after cure time @ 68°F, after 24 hrs
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