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Use Permabond 240 for: rapid bonding of plastics, rubber, and metals, especially in large gap applications and on porous surfaces.
Permabond 240 is a high-viscosity cyanoacrylate adhesive designed for fast, strong bonds across a variety of materials. Its high viscosity makes it particularly effective in large gap applications and on porous substrates, ensuring a reliable bond even in challenging conditions. This 100% reactive, solvent-free adhesive cures rapidly upon contact with surface moisture, making it ideal for high-speed production environments where efficiency is paramount.
Key Features of Permabond 240
- Rapid development of high strength
- Ease of use – no mixing or heat cure required
- Bonds most materials, including plastics, rubber, and metals
- High viscosity for large gap filling
- Ideal for porous substrates
- 100% reactive, no solvents
Technical Overview
- Chemical Properties: Ethyl cyanoacrylate
- Application Temperature Range: Room temperature (optimal)
Trade Professional Information
- Required Tools: Dispensing nozzles, surface preparation solvents (acetone, isopropanol), emery cloth for metal abrasion.
- Trade-Specific Tips: Ensure surfaces are clean and dry before application. For difficult-to-bond materials like polypropylene or polyethylene, use Permabond Polyolefin Primer (POP). For faster curing on acidic surfaces, use Permabond C Surface Activator (CSA) or Permabond QFS 16.
- Common Issues and Solutions: Blooming (white residue) can occur in high humidity; ensure proper ventilation. Inconsistent bond strength can result from contaminated surfaces; thorough cleaning is essential.
Storage and Shelf Life
- Storage Requirements: 2°C to 7°C (35°F to 45°F) in a cool, dry place.
- Shelf Life Information: Typically 12 months from the date of manufacture when stored correctly.
- Temperature Considerations: Allow adhesive to reach room temperature before opening to prevent condensation.
Certifications
- Approved to MIL-A-46050C Type II Class 3 (existing designs)
Frequently Asked Questions About Permabond 240
What materials can Permabond 240 bond?
Permabond 240 bonds a wide range of materials including metals, plastics, and rubbers. For difficult plastics like polypropylene or polyethylene, use a primer.
Use Permabond 240 for:
- Rapid assembly of small parts
- Bonding porous materials
- Large gap filling applications
- General-purpose bonding of metals, plastics, and rubbers
- High-speed production lines
- Electronic component assembly
Why Use Permabond 240:
- Fast curing and high strength
- Easy application without mixing or heat
- Versatile bonding across many substrates
- Solvent-free formulation
- Ideal for demanding production environments
How to apply Permabond 240:
- Ensure surfaces are clean, dry, and free from grease. Use a suitable solvent for cleaning.
- For metals like aluminium or copper, lightly abrade the surface to remove oxide layers.
- Apply the adhesive sparingly to one surface.
- Bring the components together quickly and correctly aligned.
- Apply sufficient pressure to ensure the adhesive spreads into a thin film.
- Do not disturb or re-align until sufficient strength is achieved, normally in a few seconds.
- Remove any surplus adhesive with Permabond CA solvent, nitromethane, or acetone.
Permabond 240 limitations:
- Not recommended for prolonged exposure to strong oxidizing materials or polar solvents.
- Performance can be affected by temperature and humidity.
- Wear appropriate gloves and eye protection.
- Ensure adequate ventilation during use.
Permabond 240 can be used on the following substrates:
- Steel
- Aluminium
- Zinc
- ABS
- PVC
- Polycarbonate (PC)
- Phenolic materials
- Buna N Rubber
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