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Permabond 240 Cyanoacrylate Adhesive

Rapid-setting Permabond 240 bonds most materials, ideal for porous surfaces and large gaps. High strength, solvent-free cyanoacrylate.
Vendor: Permabond
SKU: CYNC4/50
Availability: In Stock
$42.46
$42.46
Prices do not include GST
Physical Properties
Chemical properties: Ethyl cyanoacrylate
Colour: Colourless
Viscosity @ 25°c: 1200-2500 mpa.s (cp)
Specific gravity: 1.1
Maximum gap fill: 0.4 mm (0.017 in)
Fixture/handling time (steel): 15-20 seconds
Fixture/handling time (buna n rubber): 15-20 seconds
Fixture/handling time (phenolic): 15-20 seconds
Full strength: 24 hours
Shear strength (steel): 21-25 n/mm² (3000-3600 psi)
Shear strength (aluminium): 8-9 n/mm² (1200-1300 psi)
Shear strength (zinc): 10 n/mm² (1450 psi)
Shear strength (abs): >8 n/mm² (1200 psi)
Shear strength (pvc): >11 n/mm² (1600 psi)
Shear strength (pc): >5 n/mm² (700 psi)
Shear strength (phenolic): 14 n/mm² (2000 psi)
Impact strength: 3-5 kj/m² (1.4-2.4 ft-lb/in²)
Dielectric constant @ 10khz: 2.5
Dielectric strength: 25 kv/mm
Coefficient of thermal expansion: 90 x 10^-6 mm/mm/°c
Coefficient of thermal conductivity: 0.1 w/(m.k)
Hardness (iso868): 85 shore d
Storage temperature: 2°c to 7°c (35°f to 45°f)
Service temperature: -55°c (depending on materials bonded)

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Permabond 240 Cyanoacrylate Adhesive
Vendor: Permabond
Permabond 240 Cyanoacrylate Adhesive
$42.46
Vendor: Permabond
Permabond 240 Cyanoacrylate Adhesive
$42.46
Colour: Clear
Size: 50g
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:

  1. Ensure surfaces are clean, dry, and free from grease. Use a suitable solvent for cleaning.
  2. For metals like aluminium or copper, lightly abrade the surface to remove oxide layers.
  3. Apply the adhesive sparingly to one surface.
  4. Bring the components together quickly and correctly aligned.
  5. Apply sufficient pressure to ensure the adhesive spreads into a thin film.
  6. Do not disturb or re-align until sufficient strength is achieved, normally in a few seconds.
  7. 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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