LOCTITE AA 3922
Harmonization Code : 3919.10.80 | Other self-adhesive plastic rolls not exceeding 20 cm wide.
Main features
- Second-Scale UV Fixture
- Low-Viscosity Precision Bonding
- UV-Fluorescent Bond Inspection
Product Description
LOCTITE AA 3922 is a low-viscosity UV/visible-light-curing adhesive for fast bonding of stress-sensitive plastics, glass, metal and ceramics. At 25 deg C its viscosity is 150 to 450 mPa s, and fixture can be reached within 10 seconds on glass at 6 mW/cm^2 measured at 365 nm. The material fluoresces under UV light, supporting visual inspection for adhesive presence. Typical cured properties include 135% elongation and 18 N/mm^2 tensile strength after 30 seconds per side at 100 mW/cm^2 and 365 nm using an electrodeless D bulb. It was specifically developed for stainless steel cannula-to-hub, syringe and lancet assemblies.
Key features
- Rapid UV Fixture: Fixture on glass is 10 seconds or less at 6 mW/cm^2 measured at 365 nm.
- Low-Viscosity Dispensing: Typical viscosity is 150 to 450 mPa s at 25 deg C and 1,000 s^-1.
- UV-Fluorescent Inspection: The adhesive fluoresces under black light to aid inspection for adhesive presence.
Applications
Bonding stress-sensitive plastics, metal, glass and ceramics, including cannula, hub, syringe and lancet assemblies.
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Physical Properties
Thermal Properties
Mechanical Properties
Chemical Properties
Other Properties
Additional Information
As-supplied / before-processing properties
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Specific gravity | 1.04 | Typical at 25 deg C | |
| Viscosity | 150 to 450 | mPa s | Cone and plate; 25 deg C; shear rate 1,000 s^-1 |
| UV fluorescence | Positive | Uncured material; black-light inspection feature | |
| Fixture time | 10 max | s | Glass; 6 mW/cm^2 measured at 365 nm; black-light source |
After-processing / final-state properties
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Glass transition temperature | 75 | deg C | ISO 11359-2; cured 100 mW/cm^2 at 365 nm for 30 s per side |
| Shore hardness | 66 | Shore D | ISO 868; cured 100 mW/cm^2 at 365 nm for 30 s per side |
| Elongation at break | 135 | % | ISO 527-3; cured 100 mW/cm^2 at 365 nm for 30 s per side |
| Tensile strength | 18 | N/mm^2 | ISO 527-3; cured 100 mW/cm^2 at 365 nm for 30 s per side |
| Tensile modulus | 630 | N/mm^2 | ISO 527-3; cured 100 mW/cm^2 at 365 nm for 30 s per side |
| Block shear, polycarbonate to polycarbonate | 23.5 | N/mm^2 | Cured 100 mW/cm^2 at 365 nm for 30 s per side |
| Block shear, grit-blasted steel to glass | 15.0 | N/mm^2 | Cured 100 mW/cm^2 at 365 nm for 30 s per side |
| Block shear, grit-blasted aluminum to glass | 14.5 | N/mm^2 | Cured 100 mW/cm^2 at 365 nm for 30 s per side |
