LOCTITE 402
Harmonization Code : 2901.10.00.00 | Acyclic hydrocarbons; Saturated
Main features
- Low-Viscosity Instant Assembly
- Fast Multi-Substrate Fixturing
- Heat and Humidity Resistance
Product Description
LOCTITE 402 is a one-part, low-viscosity ethyl/allyl cyanoacrylate instant adhesive for rapid bonding across metals, plastics, elastomers, and porous materials. Atmospheric moisture starts the curing process. At 23 deg C/50% RH, fixture time is 5 seconds on several substrates and 60 seconds on nitrile rubber. The uncured viscosity is 110 mPa s at 25 deg C. Complete chemical/solvent resistance develops after a minimum 24-hour cure. Cured bond data include 22 N/mm^2 lap shear on grit-blasted mild steel after 72 hours. Applications include wood, paper, leather, fabric, and common engineering substrates.
Key features
- Low-Viscosity Instant Bonding: Viscosity is 110 mPa s at 25 deg C and 3,000 s^-1.
- Fast Multi-Substrate Fixture: Several substrates fixture in 5 seconds under the stated conditions.
- Heat and Humidity Resistance: The instant adhesive is formulated for thermal and humidity performance.
Applications
Applications include bonding metals, plastics, elastomers, wood, paper, leather, and fabric.
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Physical Properties
Other Properties
Additional Information
As-Supplied Properties
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Appearance | Transparent, colorless to straw-colored liquid | - | Uncured |
| Specific gravity | 1.1 | - | 22 deg C |
| Viscosity | 110 | mPa s | Cone and plate, 25 deg C, shear rate 3,000 s^-1 |
Final-State Properties
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Tensile strength | 8.6 | N/mm^2 | ISO 6922; Buna-N cord; cured 10 s at 23 deg C |
| Tensile strength | 9 | N/mm^2 | ISO 6922; Buna-N cord; cured 72 h at 23 deg C |
| Tensile strength | 33 | N/mm^2 | Steel pin, grit blasted; cured 72 h at 23 deg C |
| Lap shear strength | 22 | N/mm^2 | ISO 4587; grit-blasted mild steel; cured 72 h at 23 deg C |
| Lap shear strength | 20 | N/mm^2 | ISO 4587; etched aluminum; cured 72 h at 23 deg C |
| Block shear strength | 20 | N/mm^2 | ISO 13445; ABS; cured 72 h at 23 deg C |
