LOCTITE AA 3341
Harmonization Code : 3907.30.00.40 | Epoxy Mold Compounds containing by weight more than 70 % silicon dioxide
Main features
- Low-Viscosity Thermoplastic Bonding
- Fast UV/Visible-Light Cure
- Flexible 220% Elongation
Product Description
LOCTITE AA 3341 is a one-part, low-viscosity acrylated urethane adhesive for UV or visible-light bonding and potting. The transparent, light-yellow liquid has a typical viscosity of 525 mPa s at 25 deg C and fluoresces under UV light for inspection. It is intended primarily for heavily plasticized PVC and also adheres to polycarbonate and ABS. Under the stated cure condition, the cured material reaches 220% elongation at break, giving the bondline a flexible profile where compliance is important. Applications include disposable medical-device assembly and thermoplastic component bonding.
Key features
- Low-viscosity dispensing: A typical viscosity of 525 mPa s at 25 deg C supports controlled application.
- Flexible cured profile: The cured material reaches 220% elongation at break under the stated cure condition.
- UV fluorescence: Positive fluorescence supports visual confirmation of adhesive presence.
Applications
Applications include bonding heavily plasticized PVC, polycarbonate and ABS, potting, and disposable medical-device assembly.
Technical Specifications
No specifications available.
Additional Information
As-supplied properties
Typical uncured-product values unless otherwise stated.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Appearance | Transparent light yellow liquid | Uncured | |
| Specific gravity | 1.09 | At 25 deg C | |
| Viscosity | 525 | mPa s | Brookfield RVT, spindle 1, 10 rpm, 25 deg C |
| UV fluorescence | Positive | Inspection under UV light | |
| Optimal storage range | 8 to 21 | deg C | Unopened container in a dry location |
Final-state properties
Typical cured-material values after 30 mW/cm^2 at 400 nm for 30 seconds using an indium-doped metal-halide source, unless otherwise stated.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Shore hardness | 27 | Durometer D | ISO 868 |
| Elongation at break | 220 | % | ISO 527-3 |
| Tensile modulus | 25 | N/mm^2 | ISO 527-3 |
| Tensile strength at break | 15 | N/mm^2 | ISO 527-2 |
| UV depth of cure | 4.0 | mm | Stated cured-material condition |
| Block shear strength | 6.2 | N/mm^2 | ISO 13445, polycarbonate to PVC |
| Dielectric breakdown strength | 31.5 | kV/mm | Cured material |
