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Description for Henkel ETP 351
• Two-Part • General Purpose • Adjustable Flexibility Epoxy Adhesive • Wide Range of Product Assembly Applications • Bonding Dissimilar Substrates • Room Temperature Curable, Accelerated by Heat • Easy to Use and Apply • Easy Mix Ratio • Adjustable Hardness and Flexibility • Adhesion to a Wide Variety of Substrates •<br/>Brand Bondmaster Application Type Bond 1 Part or 2 Part 2-Part Material Form Liquid Substrate Metals, Neoprene, Plastics, Nitrile Rubber, Aluminum Manufacturer Henkel Chemistry Epoxy, Amine Cure Method Part A/Part B Cure Temperature (°C) 25, 45, 65, 105 Cure Time (min) 960 to 1,440, 240 to 360, 120 to 240, 15 to 30 Viscosity (cPs) 37,000, 37,000, 36,000 Color Black High Temperature Resistance (°C) 65, 80, 90 Low Temperature Resistance (°C) -40, -55 Volume Resistivity (O) Rigid: >1e13 (ohms/cm), Semi-rigid: >1e13 (ohms/cm), Flexible: >1e10 (ohms/cm) Density (g/cm³) 1.340, 1.240, 1.180 -
Technical Data for Henkel ETP 351
Overview
Specifications
Cure Specs
Cure Temperature (°C) 25, 45, 65, 105 Cure Time (min) 960 to 1,440, 240 to 360, 120 to 240, 15 to 30 Viscosity (cPs) 37,000, 37,000, 36,000 Test Method Work / Pot Time (min) 120, 140, 160 Test Method Mix Ratio 100:100 (by volume), 100:50 (by volume), 100:150 (by volume), 100:100 (by weight), 100:150 (by weight), 100:50 (by weight) Bond Strength
Shear Strength (psi) 2,500, 1,400, 1,900, 600 Test Method Material Resistance
High Temperature Resistance (°C) 65, 80, 90 Low Temperature Resistance (°C) -40, -55 Conductivity
Dissipation Factor 0.04000, 0.04000, 0.03000, 0.08000 Test Method Dielectric Strength (V/mil) 350 Test Method Dielectric Constant 4.40, 4.10, 3.40, 3.30 Test Method Thermal Conductivity (W/m°K) 4.15 Test Method Volume Resistivity (O) Rigid: >1e13 (ohms/cm), Semi-rigid: >1e13 (ohms/cm), Flexible: >1e10 (ohms/cm) Test Method Hardness
Shore A Hardness 60, Adjustable Test Method Shore D Hardness 80, 60, Adjustable Test Method Flexibility Adjustable, Rigid, Semi-regid, Flexible Other Properties
Glass Transition Temp (Tg) (°C) 48, 23, 11 Test Method Specific Gravity 1.580, 0.970 Coefficient of Thermal Expansion (CTE) Rigid: 58e-6, Rigid: 158e-6 , Semi-rigid: 73e-6, Semi-rigid: 173e-6, Flexible: 87e-6, Flexible: 209e-6 Test Method Density (g/cm³) 1.340, 1.240, 1.180 Business Information
Shelf Life Details Shelf Life Details, Shelf Life Details, A shelf life of 6 months when stored at or below 25°C (77°F). Shelf Life Temperature (°F) <77, <77, <77 Shelf Life (mon) 6 Part A, 6 Part B, 6 -
Best Practices for Henkel ETP 351
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Surface Preparation
For optimum bond strength and durability, the substrate surfaces to be bonded should be clean and dry. Chemical treatment of metallic surfaces gives optimum durability, but a simple abrade and degrease process may often be adequate. Cleaning or degreasing of plastic and composite surfaces is generally recommended to remove mold release agents which may inhibit optimum bonding results.
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Application
Mate the two substrates together and clamp the assembly until handling strength is achieved.
Full cure is obtained within 24 hours of adhesive application at room temperature, 25°C (77°F).
The curing temperature may be increased to accelerate the full cure of the adhesive.
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Mixing
Thoroughly mix the resin and the hardener, taking care not to introduce excess air into the bulk material. The optimum method of mixing is accomplished via in-line static mixers with a minimum of 18 mixing elements. Once mixed thoroughly, to a uniform black color
i.e. no visible streaks, apply a bead of adhesive to one of the bonding surfaces.
BONDMASTER ETP 351 Part A & Part B should not be mixed in large quantities, as a vigorous chemical reaction will occur generating a significant amount of heat and vapors.
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Clean-Up
Unreacted resin & hardener can be cleaned using acetone, isopropanol or methyl ethyl ketone (MEK).
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Viscosity Test Methods
Viscosity | Test Method | Temperature |
---|---|---|
37,000 cPs | Brookfield Viscosity at 25°C (77°F), Rigid | 25°C |
37,000 cPs | Brookfield Viscosity at 25°C (77°F), Semi-Rigid | 25°C |
36,000 cPs | Brookfield Viscosity at 25°C (77°F), Flexible | 25°C |
Work / Pot Time Test Methods
Work / Pot Time | Test Method |
---|---|
120 min | Rigid |
140 min | Semi-Rigid |
160 min | Flexible |
Shear Strength Test Methods
Shear Strength | Type | Substrate | Test Temperature | Test Method |
---|---|---|---|---|
2,500 psi | Lap shear strength | Al to Al | 25°C | ASTM D-1002, Rigid |
1,400 psi | Lap shear strength | AL to AL | 65°C | ASTM D-1002, Rigid |
1,900 psi | Lap shear strength | AL to AL | 25°C | ASTM D-1002, Semi Rigid |
600 psi | Lap shear strength | AL to AL | 25°C | ASTM D-1002, Flexible |
Dielectric Constant Test Methods
Dielectric Constant | Test Method |
---|---|
4.40 | Rigid, 60 Hz, ASTM D-150 |
4.10 | Rigid, 1 kHz, ASTM D-150 |
3.40 | Rigid, 1 MHz, ASTM D-150 |
3.30 | Semi-rigid, 1 MHz, ASTM D-150 |
Dielectric Strength Test Methods
Dielectric Strength | Test Method |
---|---|
350 V/mil | ASTM D-149 |
Dissipation Factor Test Methods
Dissipation Factor | Test Method |
---|---|
0.04000 | Rigid, 60 Hz, ASTM D-150 |
0.04000 | Rigid, 1 kHz, ASTM D-150 |
0.03000 | Rigid, 1 MHz ASTM D-150 |
0.08000 | Semi-rigid, 1 MHz, ASTM D-150 |
Thermal Conductivity Test Methods
Thermal Conductivity | Test Method |
---|---|
4.15 W/m°K | ASTM D-2214 |
Volume Resistivity Test Methods
Volume Resistivity | Test Method |
---|---|
Rigid: >1e13 (ohms/cm) | ASTM D-257 |
Semi-rigid: >1e13 (ohms/cm) | ASTM D-257 |
Flexible: >1e10 (ohms/cm) | ASTM D-257 |
Shore A Hardness Test Methods
Shore A Hardness | Shore Hardness Test Method |
---|---|
60 | Hardness/Durometer Test Method |
Adjustable | ASTM D-2240 |
Shore D Hardness Test Methods
Shore D Hardness | Shore Hardness Test Method |
---|---|
80 | Hardness/Durometer Test Method |
60 | ASTM D-2240 |
Adjustable | ASTM D-2240 |
Coefficient of Thermal Expansion (CTE) Test Methods
Coefficient of Thermal Expansion (CTE) | CTE Test Method |
---|---|
Rigid: 58e-6 | ASTM D-150 |
Rigid: 158e-6 | ASTM D-150 |
Semi-rigid: 73e-6 | ASTM D-150 |
Semi-rigid: 173e-6 | ASTM D-150 |
Flexible: 87e-6 | ASTM D-150 |
Flexible: 209e-6 | ASTM D-150 |
Glass Transition Temp (Tg) Test Methods
Glass Transition Temp (Tg) | Glass Transition Temperature (Tg) Test Method |
---|---|
48°C | ASTM D-3418 |
23°C | ASTM D-3418 |
11°C | ASTM D-3418 |