LOCTITE 4310
Harmonization Code : 3907.30.00.40 | Epoxy Mold Compounds containing by weight more than 70 % silicon dioxide
Main features
- Low-Viscosity Dual Cure
- Rapid Exposed-Surface Fixturing
- Fluorescent Process Inspection
Product Description
LOCTITE 4310 is a one-part cyanoacrylate adhesive with UV and visible-light cure plus secondary humidity cure for plastics, rubbers, and metals. Its low-viscosity fluorescent liquid supports controlled dispensing and inspection of applied material. Exposed surfaces can reach tack-free cure in 5 seconds or less under several specified light sources, while humidity cure supports shadowed bond areas. Non-UV fixture times range from under 5 seconds on ABS to 20 to 30 seconds on degreased steel. It is suited to fast assembly processes that need rapid surface cure, thin adhesive flow, and a second cure mechanism.
Key features
- Low-viscosity dual cure: A 100 to 250 mPa s liquid combines UV or visible-light cure with secondary humidity cure.
- Rapid exposed-surface cure: Several documented light sources produce a tack-free surface in 5 seconds or less.
- Fluorescent process inspection: Positive UV fluorescence supports visual confirmation of adhesive placement.
Applications / Suitable for
- Rapid bonding of plastics, rubbers, and metals
- Light curing of exposed adhesive surfaces and fillets
- Disposable medical-device assembly within documented evaluation scope
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Thermal Properties
Physical Properties
Chemical Properties
Mechanical Properties
Electrical Properties
Physical Properties
Curing Conditions
Additional Information
As-supplied / before-processing properties
Typical values for the product before cure, application, or assembly.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Appearance | Light yellow-green to dark blue-green liquid | - | As supplied |
| Fluorescence | Positive under UV light | - | As supplied |
| Chemical type | Ethyl cyanoacrylate with photoinitiator | - | As supplied |
| Components | One part | - | No mixing required |
| Specific gravity | 1.06 | - | 25 deg C |
| Viscosity | 100 to 250 | mPa s | Cone and plate, 25 deg C, shear rate 100 s^-1 |
| Cure mechanisms | UV / visible light; secondary humidity | - | Primary exposed-surface cure plus atmospheric-moisture cure |
After-processing / final-state properties
Typical values for the cured or installed product under the listed conditions.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Tack-free time | <=5 | s | Zeta 7411-S, 30 mW/cm^2 measured at 365 nm |
| Fixture time, ABS | <5 | s | Non-UV cure, 22 deg C, 50% RH |
| Fixture time, degreased steel | 20 to 30 | s | Non-UV cure, 22 deg C, 50% RH |
| Glass transition temperature | 102 | deg C | ASTM E 228; cured 100 mW/cm^2 at 365 nm for 30 s per side |
| Shore hardness | 84 | Shore D | ISO 868; cured 100 mW/cm^2 at 365 nm for 30 s per side |
| Tensile strength | 50 | N/mm^2 | ISO 527-3; cured 100 mW/cm^2 at 365 nm for 30 s per side |
| Block shear, polycarbonate to polycarbonate | 22 | N/mm^2 | ISO 13445; cured 100 mW/cm^2 at 365 nm for 30 s |
