PERMABOND 731

Product code: 731

Manufacturer: Permabond

Package size: 20g

Shelf Life:

PERMABOND® 731 is a toughened cyanoacrylate with very good impact and peel strength when compared to a conventional cyanoacrylate. It bonds rapidly at room temperature and its viscosity is stable over the shelf life of the product. This provides consistent performance. The product adheres to a variety of surfaces including steel, aluminum, galvanized steel, plastics and elastomers.

FEATURES:

  • Longer cure allows accurate alignment
  • Toughened and flexible
  • Ease of use – no mixing or heat cure
  • Bonds most materials
  • 100% reactive, no solvents

APPLICATIONS:

  • Adheres to a variety of surfaces including steel, aluminum, galvanized steel, plastics and elastomers

Physical Properties of Uncured Adhesive

Chemical composition Ethyl cyanoacrylate
Appearance Colourless
Viscosity @ 25°C 100-200 mPa.s (cP)
Specific gravity 1.1

Typical Curing Properties

Maximum gap fill 0.15 mm / 0.006 in
Fixture / handling time* (0.3 N/mm² shear strength is achieved) <30 seconds (Steel)
120-180 seconds (Aluminium)
15-20 seconds (Buna N Rubber)
30-45 seconds (ABS)
15-20 seconds (Neoprene)
<30 seconds (Phenolic)
Full strength 24 hours

Typical Performance of Cured Adhesive

Shear strength (ISO4587) Steel 24-30 N/mm² (3500-4400 psi)
Aluminium 13-15 N/mm² (1900-2200 psi)
Zinc 10 N/mm² (1450 psi)
PVC 5.5 N/mm² (800psi)
Acrylic 4 N/mm² (700 psi)
Impact strength (ASTM D-950) 5-10 kJ/m² (2.4-4.8 ft-lb/in²)
Coefficient of thermal expansion 90 x 10^-6 mm/mm/°C
Coefficient of thermal conductivity 0.1 W/(m.K)

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