LOCTITE 3301
Harmonization Code : 3919.10.80 | Other self-adhesive plastic rolls not exceeding 20 cm wide.
Main features
- Low-Viscosity Close-Fit Assembly
- Five-Second Light Fixture
- Transparent Flexible Bonding
Product Description
LOCTITE AA 3301 is a transparent, low-viscosity acrylated urethane adhesive that develops bonds through UV or visible-light exposure. The one-part liquid has a typical viscosity of 150 mPa s at 25 deg C and is designed for close-fitting PVC-to-polycarbonate assemblies. Under specified light conditions, it develops fixture strength in 5 seconds, supporting fast placement and handling. The cured adhesive remains transparent and provides a Shore D hardness of 69 with 50% elongation. Applications include bonding PVC tubing to polycarbonate, glass, plastics, and metals, including supported disposable medical-device assembly.
Key features
- Low-Viscosity Close Fit: A typical viscosity of 150 mPa s at 25 deg C suits close-fitting PVC-to-polycarbonate assemblies.
- Five-Second Fixture: The 0.1 N/mm^2 shear fixture threshold is reached in 5 seconds under the listed light conditions.
- Transparent Cured Bond: The cured material remains transparent with Shore D hardness 69 and 50% elongation.
Applications
Close-fitting PVC-to-polycarbonate bonding, glass, plastic, and metal assemblies, and supported disposable medical-device assembly.
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Physical Properties
Other Properties
Mechanical Properties
Chemical Properties
Electrical Properties
Additional Information
As-supplied / before-processing properties
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Appearance | Transparent liquid | Uncured; typical | |
| Refractive index | 1.48 | Dimensionless | Uncured; typical |
| Viscosity | 150 | mPa s | Brookfield RVT, spindle 1, 20 rpm, 25 deg C |
| Fixture time | 5 | seconds | Glass slides; CL42 LED flood light; 514 mW/cm^2 at 405 nm |
| Fixture time | 5 | seconds | Polycarbonate; metal-halide lamp; 30 mW/cm^2 at 365 nm |
After-processing / final-state properties
Cured-material values use the listed light-cure conditions; row-specific methods and bond geometry remain explicit.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Shore hardness | 69 | Shore D | ISO 868; cured at 30 mW/cm^2, 365 nm, for 80 seconds |
| Refractive index | 1.51 | Dimensionless | Cured material; typical |
| Water absorption | 3 | % | ISO 62; 2 hours in boiling water |
| Elongation at break | 50 | % | ISO 527-3; typical |
| Tensile strength at break | 19 | N/mm^2 | ISO 527-3; typical |
| Tensile modulus | 738 | N/mm^2 | ISO 527-3; typical |
| Dielectric breakdown strength | 34 | kV/mm | Typical cured material |
| Lap shear strength | 5 | N/mm^2 | Polycarbonate; 0.5 mm gap; substrate failure; 30 mW/cm^2 at 365 nm for 80 seconds |
