Henkel Armstrong A-31 Datasheet Henkel Armstrong A-31

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  • Description for Henkel Armstrong A-31

    A two-part, room temperature curing, epoxy resin formulation for general purpose applications, thixotropic with a creamy or buttery consistency.

    *See Terms of Use Below

    Brand Loctite, Armstrong
    Chemical Resistance 10% NaCl, Chemical Resistance: Glacial acetic acid, Acetone, Distilled H20, Ethylacetate, Ethylene dichloride, Toluene, Hexane, NH4 OH
    Application Type Bond, Seal
    1 Part or 2 Part 2 Part
    Material Form Paste
    Substrate All metals, Olefin plastics, Dissimilar adherents, Hard plastics, Dissimilar materials, Treated Teflon
    Industry General purpose applications
    Manufacturer Henkel
    Chemistry Epoxy resin
    Cure Method 2-Part Cure, Room temperature curing
    Cure Temperature (°C) 20 to 25 Room temperature, 24, 74
    Cure Time (min) 960 to 1,200, 120
    Viscosity (cPs) Creamy, Buttery
    Color Neutral
    High Temperature Resistance (°C) Quite resistant to thermal changes

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Work / Pot Time Test Methods
Work / Pot Time Test Method Temperature
40 to 50 min Pot Life: A mixture of 100 grams will have a usable pot life of 40 to 50 minutes at 75°F. 24°C
Cleavage Strength Test Methods
Cleavage Strength Cure Time Cure Temperature
1,490 psi 20 to 25°C Room Temp
1,720 psi 120 min 74°C
General Bond Strength Test Methods
General Bond Strength Cure Time Cure Temperature
1,980 psi 20 to 25°C Room Temp
2,000 psi 120 min 74°C
Tensile Strength Test Methods
Tensile Strength Cure Time Cure Temperature
5,350 psi 20 to 25°C Room Temp
3,960 psi 120 min 74°C
Shear Strength Test Methods
Shear Strength Type Cure Time Cure Temperature Cure Humidity Chemical Test Time Test Temperature Test Method
2,350 psi Tensile Shear Strength 20 to 25°C Room Temp 24°C Room Temperature
2,450 psi Tensile Shear Strength 20 to 25°C Room Temp -51°C
1,590 psi Tensile Shear Strength 20 to 25°C Room Temp 82°C
2,160 psi Tensile Shear Strength 20 to 25°C Room Temp NH4 OH 604,800 sec After Soaking
2,360 psi Tensile Shear Strength 20 to 25°C Room Temp Distilled H2O 604,800 sec After Soaking
1,980 psi Tensile Shear Strength 20 to 25°C Room Temp Glacial Acetic acid 604,800 sec After Soaking
2,280 psi Tensile Shear Strength 20 to 25°C Room Temp 10% NaCI 604,800 sec After Soaking
2,120 psi Tensile Shear Strength 20 to 25°C Room Temp Acetone 604,800 sec After Soaking
2,290 psi Tensile Shear Strength 20 to 25°C Room Temp Ethylene dichloride 604,800 sec After Soaking
2,150 psi Tensile Shear Strength 20 to 25°C Room Temp Toluene 604,800 sec After Soaking
2,490 psi Tensile Shear Strength 20 to 25°C Room Temp Ethylacetate 604,800 sec After Soaking
2,370 psi Tensile Shear Strength 20 to 25°C Room Temp Hexane 604,800 sec After Soaking
2,530 psi Tensile Shear Strength 20 to 25°C Room Temp 100 % 604,800 sec After Soaking
2,460 psi Tensile Shear Strength 120 min 74°C 24°C Room Temperature
2,800 psi Tensile Shear Strength 120 min 74°C -51°C
2,350 psi Tensile Shear Strength 120 min 74°C 82°C
2,430 psi Tensile Shear Strength 120 min 74°C NH4 OH 604,800 sec After Soaking
2,470 psi Tensile Shear Strength 120 min 74°C Distilled H2O 604,800 sec After Soaking
2,260 psi Tensile Shear Strength 120 min 74°C Glacial Acetic acid 604,800 sec After Soaking
2,460 psi Tensile Shear Strength 120 min 74°C 10% NaCI 604,800 sec After Soaking
2,290 psi Tensile Shear Strength 120 min 74°C Acetone 604,800 sec After Soaking
2,330 psi Tensile Shear Strength 120 min 74°C Ethylene dichloride 604,800 sec After Soaking
2,250 psi Tensile Shear Strength 120 min 74°C Toluene 604,800 sec After Soaking
2,490 psi Tensile Shear Strength 120 min 74°C Ethylacetate 604,800 sec After Soaking
2,340 psi Tensile Shear Strength 120 min 74°C Hexane 604,800 sec After Soaking
2,620 psi Tensile Shear Strength 120 min 74°C 100 % 604,800 sec After Soaking
Elongation Test Methods
Elongation Test Method
2 % Room Temp Cure
2 % Cured 2 Hrs @ 165°F
Coefficient of Thermal Expansion (CTE) Test Methods
Coefficient of Thermal Expansion (CTE) CTE Test Method
3.8e-5 (in./ in/°C) Room Temp Cure
3.7e-5 (in./ in/°C) Cured 2 Hrs @ 165°F