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Description for Henkel Armstrong A-3 Epoxy Resin w/ A Activator
Adhesive formulated from specification controlled epoxy resins and inert, high purity filler materials. Contain ingredients that impart low, surface free energy characteristics, giving it excellent wettability to adherents that are traditionally hard to bond.Note: This material has been discontinued. Please view the Comparable Materials tab or call us at (262) 293-7970 for additional help.
Brand Armstrong Chemical Resistance Acetone, Chemical Resistance: Glacial Acetic Acid, Chemical Resistance: Fluid Resistance: Salt water, Ammonia, 28%, Chemical Resistance: Fluid Resistance: Distilled Water, Hexane, Ethyl Acetate, Ethylenedichloride, Toluene Application Type Bond 1 Part or 2 Part 2-Part Material Form Paste Substrate Ceramics, Glass, Metal, Thermosetting Plastics, Rubber, Steel, Wood Manufacturer Henkel Chemistry Epoxy Cure Method 2 Parts Cure Temperature (°C) 20 to 25, 74 Cure Time (min) 10,080, 120 Viscosity (cPs) 5,000 Color Black High Temperature Resistance (°C) 82 Low Temperature Resistance (°C) -51 Volume Resistivity (O) 3.0e14 (ohms/cm) Density (g/cm³) 0.000 0.058 (lbs/cubic in) -
Technical Data for Henkel Armstrong A-3 Epoxy Resin w/ A Activator
Overview
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Chemical Resistance
- Chemical Resistance : Fluid Resistance : Water Resistance - Distilled Water, Salt water
- Chemical Resistance - Acetone, Ammonia, 28%, Ethyl Acetate, Ethylenedichloride, Hexane, Toluene
- Chemical Resistance : Acid Resistance - Glacial Acetic Acid
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Application Type
- Adhesive - Bond
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1 Part or 2 Part
- 2-Part
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Material Form
- Paste
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Chemistry
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Cure Method
- 2-Part Cure - 2 Parts
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Color
- Black
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Brand
- Armstrong
Specifications
Cure Specs
Cure Temperature (°C) 20 to 25, 74 Cure Time (min) 10,080, 120 Viscosity (cPs) 5,000 Test Method Set Time (min) Fast Work / Pot Time (min) 30 Test Method Mix Ratio 100:4 (by weight) Bond Strength
General Bond Strength (psi) 1,110, 2,130 Test Method Cleavage Strength (psi) 770, 1,400 Test Method Compressive Strength (psi) 10.8 (psi) X 1000, 13.3 (psi) x1000 Test Method Tensile Strength (psi) 3,070, 4,740, 1,530, 880, 890, 2,380, 1,750, 2,300, 2,280, 1,830, 2,050, 2,200, 1,200, 950, 1,530, 2,160, 3,250, 1,425, 1,970, 1,600, 1,720, 1,730, 1,510, 1,700, 1,470, 1,560, 1,970, 1,900 Test Method Material Resistance
High Temperature Resistance (°C) 82 Low Temperature Resistance (°C) -51 Moisture/Humidity Resistance Moisture/humidity resistance Conductivity
Filler Inert, High purity materials Volume Resistivity (O) 3.0e14 (ohms/cm) Test Method Hardness
Elongation (%) 1, 2 Test Method Other Properties
Specific Gravity 1.600 Coefficient of Thermal Expansion (CTE) 4.2e-5 (in./ in/°C) Test Method Density (g/cm³) 0.000 0.058 (lbs/cubic in) 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 -
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Best Practices
Best Practices information currently not available. -
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Viscosity Test Methods
Viscosity | Temperature |
---|---|
5,000 cPs | 25°C |
Work / Pot Time Test Methods
Work / Pot Time | Temperature |
---|---|
30 min | 25°C |
Cleavage Strength Test Methods
Cleavage Strength | Cure Time | Cure Temperature |
---|---|---|
770 psi | 10,080 min | 25°C |
1,400 psi | 120 min | 74°C |
Compressive Strength Test Methods
Compressive Strength | Cure Time | Cure Temperature | Test Method |
---|---|---|---|
10.8 (psi) X 1000 | 10,080 min | 25°C | Ult. |
13.3 (psi) x1000 | 120 min | 74°C | Ult. |
General Bond Strength Test Methods
General Bond Strength | Cure Time | Cure Temperature |
---|---|---|
1,110 psi | 0.00 min | 25°C |
2,130 psi | 0.00 min |
Tensile Strength Test Methods
Tensile Strength | Cure Time | Cure Temperature | Substrate | Chemical | Test Time | Test Temperature | Test Humidity |
---|---|---|---|---|---|---|---|
3,070 psi | 10,080 min | 25°C | |||||
4,740 psi | 120 min | 74°C | |||||
1,530 psi | 10,080 min | 25°C | 25°C | ||||
880 psi | 10,080 min | 25°C | 82°C | ||||
890 psi | 10,080 min | 25°C | -51°C | ||||
2,380 psi | 10,080 min | 25°C | Ammonia, 28% | >0.00 min | |||
1,750 psi | 10,080 min | 25°C | Distilled Water | >0.00 min | |||
2,300 psi | 10,080 min | 25°C | Salt water. 10% | >0.00 min | |||
2,280 psi | 10,080 min | 25°C | Acetone | >0.00 min | |||
1,830 psi | 10,080 min | 25°C | Glacial Acetic Acid | >0.00 min | |||
2,050 psi | 10,080 min | 25°C | Toluene | >0.00 min | |||
2,200 psi | 10,080 min | 25°C | Ethylenedichloride | >0.00 min | |||
1,200 psi | 10,080 min | 25°C | Ethyl Acetate | >0.00 min | |||
950 psi | 10,080 min | 25°C | Hexane | >0.00 min | |||
1,530 psi | 10,080 min | 25°C | >0.00 min | 100 % | |||
2,160 psi | 120 min | 74°C | 82°C | ||||
3,250 psi | 120 min | 74°C | -51°C | ||||
1,425 psi | 120 min | 74°C | Ammonia, 28% | >0.00 min | |||
1,970 psi | 120 min | 74°C | Distilled Water | >0.00 min | |||
1,600 psi | 120 min | 74°C | Salt water. 10% | >0.00 min | |||
1,720 psi | 120 min | 74°C | Acetone | >0.00 min | |||
1,730 psi | 120 min | 74°C | Glacial Acetic Acid | >0.00 min | |||
1,510 psi | 120 min | 74°C | Toluene | >0.00 min | |||
1,700 psi | 120 min | 74°C | Ethylenedichloride | >0.00 min | |||
1,470 psi | 120 min | 74°C | Ethyl Acetate | >0.00 min | |||
1,560 psi | 120 min | 74°C | Hexane | >0.00 min | |||
1,970 psi | 120 min | 74°C | >0.00 min | ||||
1,900 psi | 120 min | 74°C | 100 % |
Volume Resistivity Test Methods
Volume Resistivity | Temp (°C) |
---|---|
3.0e14 (ohms/cm) | 93°C |
Elongation Test Methods
Elongation | Test Method |
---|---|
1 % | 7 days @ R.T |
2 % | 2 hrs @ 165°F |
Coefficient of Thermal Expansion (CTE) Test Methods
Coefficient of Thermal Expansion (CTE) | CTE Test Method |
---|---|
4.2e-5 (in./ in/°C) | 7 days @ R.T. |

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