Henkel Armstrong A-40 Epoxy Resin

Henkel Armstrong A-40 Epoxy Resin Datasheet
  • Description for Henkel Armstrong A-40 Epoxy Resin

    A high-viscosity, liquid adhesive system that features exceptional resistance to salt spray, anti-icing fluid, outdoor weathering, jet fuels, hydrocarbon fluids, hydraulic oil, and creep.

    Note: This material has been discontinued. Please view the Comparable Materials tab or call us at (262) 293-7970 for additional help.

    *See Terms of Use Below

    Brand Armstrong
    Application Type Bond
    1 Part or 2 Part 2 Part
    Material Form Liquid
    Substrate Metal, Wood
    Manufacturer Henkel
    Chemistry Epoxy, Polyamide amide
    Application Method Metal spatula, Trowel
    Cure Method Part A/Part B
    Cure Temperature (°C) 20 to 25 Room Temperature, 99
    Cure Time (min) 10,080, 120
    Chemical Resistance Anti-icing fluid, Hydraulic oil, Hydrocarbon fuel, Jet fuel, Salt spray
    Key Specifications Mil-Spec (United States Military Standard): MMM-A-134: MIL-MMM-A-134, Type II
  • Technical Data for Henkel Armstrong A-40 Epoxy Resin

    Overview
    • Application Type
    • 1 Part or 2 Part
      • 1 Part or 2 Part - 2 Part
    • Material Form
      • Liquid
    • Substrate
    • Chemistry
      • Epoxy
      • Other - Polyamide amide
    • Application Method
      • Dispenser - Mechanical applicator, Wooden coffee-stirrer
      • Spatula/Trowel - Metal spatula, Trowel
    • Cure Method
      • 2-Part Cure - Part A/Part B
    • Key Specifications
      • Mil-Spec (United States Military Standard): MMM-A-134: Type II - MIL-MMM-A-134, Type II
    • Brand
      • Armstrong
    Specifications
    Cure Specs
    Cure Temperature (°C) 20 to 25 Room Temperature, 99
    Cure Time (min) 10,080, 120
    Work / Pot Time (min) 180, 120 to 630, 45 Test Method
    Mix Ratio 5:2 (by weight)
    Material Resistance
    Chemical Resistance Anti-icing fluid, Hydraulic oil, Hydrocarbon fuel, Jet fuel, Salt spray
    Environmental Resistance Exceptional
    Conductivity
    Filler Polyamide amide, Inert
    Hardness
    Shore D Hardness 77
    Elongation (%) 2
    Business Information
    Shelf Life Details Store below 25°C out of sunlight and in original unopened containers. Refer to packaging specific quote for shelf life information.
    Shelf Life Temperature (°F) <77
  • Best Practices for Henkel Armstrong A-40 Epoxy Resin

    *See Terms of Use Below

    1. Surface Preparation

      Surfaces to be bonded should be clean and dry. For critical applications, refer to our suggested surface preparation procedures — Bulletin No. 964

    2. Application

      Property mixed material may be applied to the surfaces being bonded with a mechanical applicator or any clean tool such as a metal spatula, trowel, wooden coffeestirrer, or equivalent. The material should be spread thinly and evenly. Glue lines as thick as .101” will provide good strength but the general rule is—the thinner the better. The important thing is that the surfaces being bonded are thoroughly “welted out” with the resin system. Once applied, the joints being bonded should be assembled immediately

      under no circumstances would this open assembly times exceed 30 minutes. No pressure is required other than that necessary to hold to assembly in position until the resin cures. Then uncured material may be removed from mixing utensils etc. with solvent such as Methyl Ethyl ketone (MEK) and/ or Cellosolve or equivalent.

    3. Mixing

      The mix ratio for A-40 is 5 parts of Part A to 2 parts of Part B by weight. The concentration of Part B may be varied = 10% of the recommended amount without seriously affecting the physical properties other than the working life. For best results, the temperature of the Part A and Part B should be between 70° to 90°F. before mixing. Lower and higher temperatures can be employed but the working life will be reduced as the temperature is increased and the working life will be extended as the temperature decreases. At lower temperatures, the material is quiet vouches and not as easy to mix.

      A-40 should not be thinned with solvent at any time. The Part A and the Part B must be thoroughly mixed before the system is ready for use.

    4. Curing

      A-40 should be cured as follows: 7 days at room temperature or 2 hours at 210°F. Where military specification qualification is necessary the 2 hour cure at 210°F must be followed.

  • Comparable Materials for Henkel Armstrong A-40 Epoxy Resin

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Work / Pot Time Test Methods
Work / Pot Time Test Method Temperature
180 min 175 gram, Approximately 13°C
120 to 630 min 175 gram, Approximately 21°C
45 min 175 gram, Approximately 32°C