LOCTITE 4211
Harmonization Code : 3919.10.80 | Other self-adhesive plastic rolls not exceeding 20 cm wide.
Main features
- Black Toughened Bondline
- Impact and Peel Resistance
- Heat and Humidity Resistance
Product Description
LOCTITE 4211 is a one-part, black ethyl cyanoacrylate adhesive toughened with elastomers for improved impact, peel, heat, and humidity resistance. Its high-viscosity profile measures 1,700 to 3,450 mPa s at 20 rpm and 25 deg C. A 0.05 mm thin gap is the preferred bondline. Atmospheric moisture initiates cure; fixture time varies from 10 seconds on nitrile rubber to 240 seconds on zinc dichromate under the stated conditions. With 24 hours of cure at 22 deg C, grit-blasted steel lap shear is 25 N/mm^2. Applications include bonding metals, plastics, and rubbers.
Key features
- Black Toughened Bondline: Elastomer toughening adds impact and peel resistance.
- Heat and Humidity Resistance: The cured bond has improved resistance to both environments.
- High-Viscosity Thin-Gap Bonding: The product performs best in thin 0.05 mm bond gaps.
Applications
Applications include bonding metals, plastics, and rubbers where impact, peel, heat, or humidity resistance is required.
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Physical Properties
Other Properties
Electrical Properties
Additional Information
As-Supplied Properties
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Appearance | Black liquid | - | Uncured |
| Specific gravity | 1.05 | - | 25 deg C |
| Viscosity | 1,700 to 3,450 | mPa s | Brookfield RVT, spindle 3, 20 rpm, 25 deg C |
| Viscosity | 6,000 to 13,500 | mPa s | Brookfield RVT, spindle 3, 2.5 rpm, 25 deg C |
Final-State Properties
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Coefficient of thermal expansion | 90 x 10^-6 | K^-1 | ISO 11359-2; cured 24 h at 22 deg C |
| Dielectric constant | 3.8 | - | IEC 60250; 1 kHz; cured 24 h at 22 deg C |
| Volume resistivity | 8 x 10^15 | ohm cm | IEC 60093; cured 24 h at 22 deg C |
| Surface resistivity | 180 x 10^15 | ohm | IEC 60093; cured 24 h at 22 deg C |
| Dielectric breakdown strength | 25 | kV/mm | IEC 60243-1; cured 24 h at 22 deg C |
| Lap shear strength | 25 | N/mm^2 | ISO 4587; grit-blasted steel; cured 24 h at 22 deg C |
| Lap shear strength | 17 | N/mm^2 | ISO 4587; etched aluminum; cured 24 h at 22 deg C |
