LOCTITE 4307
Harmonization Code : 3506.10.00.00 | 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
Main features
- Rapid UV Surface Cure
- Humidity Secondary Cure
- Fluorescent Application Inspection
Product Description
LOCTITE 4307 is a one-part ethyl cyanoacrylate adhesive with UV and visible-light cure plus secondary humidity cure for plastics, rubbers, and metals. The fluorescent liquid supports application inspection, while exposed fillets and surfaces can reach a tack-free state in seconds under the specified light conditions. Humidity cure supports bonded interfaces outside direct light. A viscosity of 600 to 1,200 mPa s supports controlled placement, and non-UV fixture times range from 5 to 20 seconds on several tested substrates. It is suited to rapid assembly where fast fixturing and controlled exposed-surface cure are required.
Key features
- Rapid light-cured surfaces: Exposed fillets and surfaces reach tack-free cure in 5 seconds or less with documented UV light sources.
- Secondary humidity cure: Atmospheric moisture supports cure in bonded areas that do not receive direct light.
- Fluorescent application inspection: Positive UV fluorescence helps operators identify applied adhesive during assembly.
Applications / Suitable for
- Rapid bonding of plastics, rubbers, and metals
- UV or visible-light curing of exposed fillets and surfaces
- Disposable medical-device assembly within documented evaluation scope
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Thermal Properties
Physical Properties
Chemical Properties
Mechanical 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 | 600 to 1,200 | 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 7400, 30 mW/cm^2 measured at 365 nm |
| Fixture time, ABS | 5 to 10 | s | Non-UV cure, 22 deg C, 50% RH |
| Fixture time, grit-blasted steel | 10 to 20 | s | Non-UV cure, 22 deg C, 50% RH |
| Glass transition temperature | 114 | deg C | ASTM E 228; cured 100 mW/cm^2 at 365 nm for 30 s per side |
| Shore hardness | 82 | Shore D | ISO 868; cured 100 mW/cm^2 at 365 nm for 30 s per side |
| Tensile strength | 33.4 | N/mm^2 | ISO 527-3; cured 100 mW/cm^2 at 365 nm for 30 s per side |
| Block shear, polycarbonate | >=9.0 | N/mm^2 | ISO 13445; cured 30 mW/cm^2 at 365 nm for 10 s |
