LOCTITE 3335
Harmonization Code : 3506.91.90.99 | Prepared glues and other prepared adhesives, not elsewhere specified or included; products suitable for use as glues or adhesives, put up for retail sale as glues or adhesives, not exceeding a net weight of 1 kg ; Adhesives based on polymers of headings 3901 to 3913 or on rubber; Other ; Other
Main features
- Rapid UV-Cationic Cure
- Low-Shrinkage Rigid Bonding
- 135 deg C Glass Transition
Product Description
LOCTITE EA 3335 brings one-part UV-cationic epoxy chemistry to bonding, coating, and tacking on metal, plastic, and glass. The clear liquid cures rapidly under suitable UV exposure to form a hard, translucent material with a typical glass transition temperature of 135 deg C and volume shrinkage of 2.18%. A viscosity range of 5,000 to 7,000 mPa s at 25 deg C provides a defined application profile before cure. The cured epoxy also has volume resistivity of 4.10 x 10^15 ohm cm and 1.1% water absorption under the stated tests for rigid bonded or coated assemblies.
Key features
- Rapid UV-Cationic Cure: Tack-free surfaces develop in less than 20 seconds under specified metal-halide conditions.
- Low Volume Shrinkage: Typical cured volume shrinkage is 2.18% by ASTM D 792.
- Hard 135 deg C Tg: The cured material has Shore D hardness of at least 80 and a 135 deg C glass transition temperature.
Applications
Bonding, coating, and tacking metal, plastic, and glass substrates where suitable UV exposure reaches the material.
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Physical Properties
Other Properties
Thermal Properties
Mechanical Properties
Chemical Properties
Electrical Properties
Additional Information
As-supplied / before-processing properties
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Appearance | Clear liquid | Uncured; typical | |
| Specific gravity | 1.1 to 1.18 | Dimensionless | LMS; 25 deg C |
| Viscosity | 5,000 to 7,000 | mPa s | LMS; Brookfield RVT, spindle 6, 50 rpm, 25 deg C |
| Tack-free time | Less than 20 | seconds | Metal-halide source; 30 or 50 mW/cm^2 at 365 nm |
After-processing / final-state properties
Values describe the cured epoxy material under the listed methods and conditions.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Thermal expansion coefficient | 58.9 x 10^-6 | K^-1 | ISO 11359-2; typical |
| Thermal conductivity | 0.205 | W/(m K) | ISO 8302; typical |
| Glass transition temperature | 135 | deg C | ISO 11357-2; typical |
| Volume shrinkage | 2.18 | % | ASTM D 792; typical |
| Shore hardness | At least 80 | Shore D | LMS; ISO 868 |
| Water absorption | 1.1 | % | ISO 62; 2 hours in boiling water |
| Tensile strength at break | 46.6 | N/mm^2 | ISO 527-3; typical |
| Volume resistivity | 4.10 x 10^15 | ohm cm | IEC 60093; typical |
