108 Gap Fill Plastic Bonding Cyanoacrylate Adhesive, Clear

Physical Properties of Uncured Adhesive

• Chemical composition: Ethyl cyanoacrylate
• Appearance: Colourless
• Viscosity @ 25°C: 400-600 mPa.s (cP)
• Specific gravity: 1.1

Typical Curing Properties

• Maximum gap fill: 0.25mm (0.008")
• Fixture/handling time* (0.3 N/mm² shear strength is achieved):
  
  • 10 seconds (Steel)
  • 10 seconds (Buna N Rubber)
  • 10 seconds (Phenolic)
• Full strength: 24 hours

*Handling times can be affected by temperature, humidity, and specific surfaces being bonded. Larger gaps or acidic surfaces will also reduce cure speed but this can be overcome by the use of Permabond C Surface Activator (CSA) or Permabond QFS 16.

Typical Performance of Cured Adhesive

• Shear strength* (ISO4587):
  
  • Steel 20-22 N/mm² (2900-3200 psi)
  • ABS 8 N/mm² (1160 psi)**
  • PVC >10 N/mm² (>1450 psi)**
  • Polycarbonate 10 N/mm² (1450 psi)**
• Impact strength (ASTM D-950): 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^-6mm/mm/°C
• Coefficient of thermal conductivity: 0.1 W/(m.K)
• Hardness (ISO868) 85: Shore D

*Strength results will vary depending on the level of surface preparation and gap.
**Substrate failure