LOCTITE EA 608
Harmonization Code : 3919.10.80 | Other self-adhesive plastic rolls not exceeding 20 cm wide.
Main features
- Clear Fast-Setting Structural Epoxy
- 1:1 Weight/Volume Mixing
- Metal and Plastic Bonding
Product Description
LOCTITE® EA 608 is a clear, two-part, fast-setting epoxy adhesive for structural bonding applications where optical clarity or a short processing time is important. The adhesive mixes at a 1:1 ratio by weight or volume and develops a clear to light-amber appearance after mixing. It has a typical pot life of 5 minutes at 77°F for a 20-gram mixed quantity and reaches handling strength in approximately 10–15 minutes at 77°F, depending on the bond configuration. LOCTITE® EA 608 bonds a variety of metals and plastics and can be fully cured at room temperature or with an accelerated heat cure.
Key features
- Clear structural bonding: The mixed adhesive cures clear to light amber for assemblies where bondline appearance or optical clarity is important.
- Fast handling strength: Develops handling strength in approximately 10–15 minutes at 77°F, depending on the bond configuration.
- Simple 1:1 mixing: Parts A and B are combined at a 1:1 ratio by both weight and volume for cartridge or bulk application.
Applications / Suitable for
- Structural bonding
- Bonding metals
- Bonding plastics
- Assemblies requiring a clear adhesive bondline
Technical Specifications
General Properties
Color
Color
Milky white / amber / clear or light amber
Mix Ratio
Mix Ratio
1:1
Pot Life
Pot Life
5 minutes
Specific Gravity
Specific Gravity
1.16
Physical Properties
Viscosity (Part B)
Viscosity (Part B)
20000–40000 mPa.s
Thermal Properties
Thermal Conductivity
Thermal Conductivity
0.2 W/m.K
Electrical Properties
Dielectric Strength
Dielectric Strength
47 kV/mm
Additional Information
Technical properties
As-supplied / before-processing properties
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Mix ratio | 1:1 | — | Part A:Part B, by weight or volume |
| Pot life | 5 | min | Typical; mixed adhesive, 20-gram quantity at 77°F |
| Color | Milky white / amber / clear to light amber | — | Part A / Part B / mixed adhesive |
| Viscosity | 200,000–450,000 | cP | Typical; Part A, ASTM D2393 |
| Viscosity | 20,000–40,000 | cP | Typical; Part B |
| Specific gravity | 1.17 / 1.15 / 1.16 | — | Typical; Part A / Part B / mixed adhesive |
After-processing / final-state properties
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Coefficient of thermal expansion | 86 × 10−6 | in/in/°C | Typical; ASTM D696 |
| Thermal conductivity | 5.0 × 10−4 | cal·cm/(cm²·s·°C) | Typical cured-material value |
| Hardness | 80 | Shore D | Typical cured-material value |
| Dielectric strength | 1,200 | V/mil | Typical; ASTM D149 |
| Dielectric constant | 3.78 | — | Typical; 1 kHz, method shown in source as MIL 1-16923 |
| Dissipation factor | 2.1 × 10−4 | — | Typical; ASTM D150 at 1 kHz |
| Shear strength | 2,000 | psi | Typical; ASTM D1002, etched aluminum, cured 24 hours at 77°F and tested at 77°F |
| Shear strength | 3,000 | psi | Typical; ASTM D1002, etched aluminum, cured 2 hours at 140°F and tested at 77°F |
