PERMABOND 791
Harmonization Code : 3910.00.00.90 | Silicones in Primary Forms; Others
Main features
- Ultra-Fast 2-3 Second Fixture
- Surface-Insensitive Porous Surface Bonding
- Reduced Frosting and Fogging
Product Description
PERMABOND 791 is a low-viscosity, surface-insensitive ethyl cyanoacrylate adhesive for very fast bonding of difficult, acidic, or porous surfaces. It is particularly suited to wood and plated surfaces while also bonding plastics, metals, ceramics, and elastomers. Typical viscosity is 15 to 50 mPa s at 25 deg C with a maximum gap fill of 0.1 mm. Steel, Buna N rubber, and phenolic can reach fixture strength in 2 to 3 seconds. The rapid cure also minimizes frosting and fogging, making the grade useful where both speed and a cleaner visible bond area matter.
Key features
- 2-3 Second Fixture: Steel, Buna N rubber, and phenolic typically reach fixture strength in 2 to 3 seconds.
- Surface-Insensitive Bonding: The adhesive rapidly bonds acidic and porous surfaces such as wood and plated substrates.
- Reduced Frosting and Fogging: The fast cure minimizes frosting and fogging around the bonded area.
Applications
Bonding wood, porous or acidic surfaces, plated surfaces, plastics, metals, ceramics, and elastomers.
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Physical Properties
Additional Information
As-supplied / before-processing properties
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Chemical composition | Ethyl cyanoacrylate | - | Typical as supplied |
| Appearance | Colourless | - | Typical as supplied |
| Viscosity | 15 to 50 | mPa s | Typical at 25 deg C |
| Specific gravity | 1.1 | - | Typical |
| Maximum gap fill | 0.1 | mm | Typical curing property |
| Fixture / handling time | 2 to 3 | seconds | Typical on steel at 0.3 N/mm^2 shear strength |
After-processing / final-state properties
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Shear strength - steel | 18 to 22 | N/mm^2 | ISO 4587; typical |
| Tensile strength | >20 | N/mm^2 | ISO 6922; typical |
| Thermal conductivity | 0.1 | W/(m K) | Typical cured adhesive |
| Dielectric strength | 25 | kV/mm | Typical cured adhesive |
| Hardness | 85 | Shore D | ISO 868; typical |
