PERMABOND 4C40
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
- Fast 5-10 Second Fixture
- 0.43 mm Gap Filling
- Medical-Device Cyanoacrylate Bonding
Product Description
Permabond 4C40 is a colorless, one-part ethyl cyanoacrylate adhesive for medical-device and large-gap bonding applications. Its medium-high viscosity of 1,200-2,400 mPa s at 25 deg C provides controlled placement and gap filling up to 0.43 mm. Typical fixture time is 5-10 seconds on steel, Buna N rubber, and phenolic, with full strength developing after 24 hours. The cured adhesive reaches 20-22 N/mm2 shear strength on steel and 85 Shore D hardness. Applications include metals, ceramics, plastics, elastomers, polyacetals, and passivated metal surfaces.
Key features
- Large-Gap Cyanoacrylate: Fills gaps up to 0.43 mm for controlled instant bonding.
- Fast Fixture: Reaches handling strength in 5-10 seconds on specified substrates.
- Hard Cured Bond: Provides 85 Shore D hardness and 20-22 N/mm2 steel shear strength.
Applications
Applications include medical-device bonding, large-gap bonding, and assembly of metals, ceramics, plastics, elastomers, polyacetals, and passivated metal surfaces.
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Physical Properties
Thermal Properties
Additional Information
As supplied / before processing
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Chemical composition | Ethyl cyanoacrylate | As supplied | |
| Appearance | Colorless | As supplied | |
| Viscosity | 1,200-2,400 | mPa s | At 25 deg C |
| Specific gravity | 1.1 | As supplied | |
| Maximum gap fill | 0.43 | mm | Typical curing property |
| Fixture / handling time | 5-10 | seconds | Steel, Buna N rubber, and phenolic; 0.3 N/mm2 shear strength |
| Full strength | 24 | hours | Typical cure development |
After processing / final state
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Shear strength - steel | 20-22 | N/mm2 | ISO 4587 |
| Impact strength | 3-5 | kJ/m2 | ASTM D-950 |
| Coefficient of thermal expansion | 90 x 10^-6 | mm/mm/deg C | Typical cured value |
| Thermal conductivity | 0.1 | W/(m K) | Typical cured value |
| Hardness | 85 | Shore D | ISO 868 |
