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Description for Henkel Loctite E-308
• Single component toughened epoxy • High strength • Excellent impact resistance • Excellent peel strength<br/>• Excellent heat resistance • Bonds well to metals, thermoset and composite materials •<br/>Note: This material has been discontinued. Please view the Manufacturer's Recommended Replacement tab or call us at (262) 293-7970 for additional help.
Brand Bondmaster, Loctite Chemical Resistance Alcohols, Chemical Resistance: Halogenated solvents, Chemical Resistance: Fluid Resistance: Water, Aqueous, Hydrocarbons, Salt spray Application Type Bond, Pot 1 Part or 2 Part 1-Part Material Form Liquid Substrate Aluminum, Copper, Glass, Brass, Carbide, Plastic, Steel, Stainless Steel, Ferrite, SMC Plastic, Metal, Thermoset Plastics Manufacturer Henkel Chemistry Epoxy, Toughened Cure Method Heat Cure Temperature (°C) 150, 180, 200 Cure Time (min) 45, 17, 12 Viscosity (cPs) Low, 200,000, Free Flow, Self-leveling Color Silver-Gray High Temperature Resistance (°C) 204 Low Temperature Resistance (°C) -85 Volume Resistivity (O) 1.5e6 (ohms/cm) -
Technical Data for Henkel Loctite E-308
Overview
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Chemical Resistance
- Chemical Resistance : Fluid Resistance : Water Resistance - Water
- Chemical Resistance - Alcohols, Aqueous, Hydrocarbons, Salt spray
- Chemical Resistance : Relative Solvent Resistance - Halogenated solvents
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Application Type
- Adhesive - Bond
- Pottant / Encapsulant - Pot
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1 Part or 2 Part
- 1-Part
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Material Form
- Liquid
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Industry
- Appliances
- Furniture / Wood-Working - Furniture
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Chemistry
- Toughened
- Epoxy
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Cure Method
- Heat
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Color
- Gray - Silver-Gray
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Brand
- Loctite
- Bondmaster
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Also Known As
- Old Name - ESP308
Specifications
Cure Specs
Cure Temperature (°C) 150, 180, 200 Cure Time (min) 45, 17, 12 Viscosity (cPs) Low, 200,000, Free Flow, Self-leveling Test Method Set Time (min) 2.33, 0.67, 0.33 Test Method Work / Pot Time (min) 1,440 Bond Strength
Structural/Load-Bearing Structural General Bond Strength (psi) High Peel Strength (piw) 24 (pli), Excellent Test Method Shear Strength (psi) 6,000, 5,800, 5,800, 4,000, 3,800, 5,800, 5,800, 1,800 Test Method Material Resistance
High Temperature Resistance (°C) 204 Impact Resistance Excellent impact resistance Low Temperature Resistance (°C) -85 Moisture/Humidity Resistance Excellent Heat resistance Vibration Resistance/Shock Resistance Excellent vibration resistance Conductivity
Filler Metallic Thermal Conductivity (W/m°K) 0.71 Volume Resistivity (O) 1.5e6 (ohms/cm) Other Properties
Glass Transition Temp (Tg) (°C) 118 Specific Gravity 1.500 Test Method Coefficient of Thermal Expansion (CTE) 53.4e-6 (in./ in/°C), 178e-6 (in./ in/°C) Test Method Flash Point (°F) >199.4 % Solids (%) 100 Business Information
Shelf Life Details Store product in cool, dry location, in unopened containers at a temperature between 2 to 8 C (36 to 48 F) unless otherwise labeled. Optimal storage is at the lower half of this temperature range. To prevent contamination of unused product, do not return any material to its original container. For further specific shelf life information, contact Application Engineering at (860) 571-5100. Shelf Life Temperature (°F) 36 to 46 -
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Best Practices for Henkel Loctite E-308
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Surface Preparation
For optimum bond strength, substrate surfaces must be dry and preferably clean. Chemical treatment of metallic surfaces gives optimum durability, but a simple abrade and degrease process may often be adequate. The high bond strength achieved even on oily surfaces is sometimes beneficial where removal of oil is not practical.
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Clean-Up
Unreacted epoxy can be cleaned using acetone, isopropanol, or MEK.
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Manufacturer's Recommended Replacement Materials
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Set Time Test Methods
Set Time | Set Temperature |
---|---|
2.33 min | 150°C |
0.67 min | 180°C |
0.33 min | 200°C |
Viscosity Test Methods
Viscosity | Temperature |
---|---|
Low | |
200,000 cPs | 25°C |
Free Flow | |
Self-leveling |
Shear Strength Test Methods
Shear Strength | Substrate | Test Method |
---|---|---|
6,000 psi | Steel/Steel | ASTM D1002 |
5,800 psi | Aluminum/Aluminum | ASTM D1002 |
5,800 psi | Stainless steel/Stainless steel | ASTM D1002 |
4,000 psi | Copper/Copper | ASTM D1002 |
3,800 psi | Brass/Brass | ASTM D1002 |
5,800 psi | Carbide/Carbide | ASTM D1002 |
5,800 psi | Ferrite/Ferrite | ASTM D1002, Denotes substrate failure of the bonded material, not the adhesive joint. |
1,800 psi | SMC Plastic/SMC Plastic | ASTM D1002, Denotes substrate failure of the bonded material, not the adhesive joint. |
Peel Strength Test Methods
Peel Strength | Substrate | Test Method |
---|---|---|
24 (pli) | Steel/Steel | ASTM 1876 |
Excellent |
Coefficient of Thermal Expansion (CTE) Test Methods
Coefficient of Thermal Expansion (CTE) | CTE Test Method |
---|---|
53.4e-6 (in./ in/°C) | Below Tg |
178e-6 (in./ in/°C) | Above Tg |
Specific Gravity Test Methods
Specific Gravity | Temperature |
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1.500 | 25°C |