PERMABOND 240
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
- 15 to 20-Second Fixturing Time
- Up to 0.4 mm Gap Filling
- WRAS/MIL-A-46050C Qualification Scope
Product Description
Permabond® 240 Cyanoacrylate is a high-viscosity, single-component adhesive designed for large gap applications and bonding porous substrates. This 100% reactive formulation polymerizes rapidly at room temperature when pressed into a thin film, eliminating the need for mixing or heat curing. It is highly versatile, providing fast-setting, high-strength bonds on a wide variety of materials including plastics, rubbers, and metals.
Key features
- Rapid, room-temperature cure: Achieves fixture handling times in just 15 to 20 seconds on materials like steel, Buna N rubber, and phenolic.
- High viscosity: Optimized viscosity profile allows for a maximum gap fill of 0.4 mm (0.017 in) and makes it highly effective for porous substrates.
- Industry approvals: Approved to MIL-A-46050C Type II Class 3 for existing designs and holds WRAS Drinking Water Approval.
Applications / Suitable for
- Bonding plastics, rubbers, and metals
- Large gap applications up to 0.4 mm
- Porous substrates
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Physical Properties
Mechanical Properties
Thermal Properties
Electrical Properties
Additional Information
As-supplied / before-processing properties
Typical properties; these values are not intended for use in preparing specifications.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Chemical Composition | Ethyl cyanoacrylate | - | - |
| Appearance | Colorless | - | - |
| Viscosity | 1,200-2,500 | cP | at 25°C (mPa.s) |
| Specific Gravity | 1.1 | - | - |
| Maximum Gap Fill | 0.4 | mm | (0.017 in) |
After-processing / final-state properties
Typical properties; these values are not intended for use in preparing specifications.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Fixture/Handling Time | 15-20 | seconds | Steel, Buna N Rubber, Phenolic |
| Full Strength | 24 | hours | - |
| Shear Strength | 21-25 | N/mm² | Steel (ISO 4587) |
| Shear Strength | 8-9 | N/mm² | Aluminium (ISO 4587) |
| Impact Strength | 3-5 | kJ/m² | ASTM D-950 |
| Hardness | 85 | Shore D | ISO 868 |
| Dielectric Strength | 25 | kV/mm | - |





















