Product code: 737

Manufacturer: Permabond

Package size: 1 Ib

Shelf Life:

PERMABOND® 737 is a toughened cyanoacrylate with improved impact and peel strength for maximum flexibility. Its increased temperature resistance and dark colour make 737 suitable for a wide range of applications. It bonds rapidly to a variety of surfaces including aluminium, steel (both zinc-plated and uncoated), plastics and rubbers.


  • Good gap fill (up to 0.5mm / 0.02”)
  • Toughened and flexible
  • Ease of use – no mixing or heat cure
  • Black – so suitable for dark surfaces
  • 100% reactive, no solvents


  • Aluminium, steel (both zinc-plated and uncoated), plastics and rubbers

Physical Properties of Uncured Adhesive

Chemical composition Ethyl cyanoacrylate
Appearance Black
Viscosity @ 25°C 2,000-4,000 mPa.s (cP)
Specific gravity 1.1

Typical Curing Properties

Maximum gap fill 0.5 mm / 0.02 in
Fixture / handling time* (0.3 N/mm² shear strength is achieved) 15-20 seconds (Steel)
30-35 seconds (Aluminium)
10-15 seconds (Buna N Rubber)
5-10 seconds (Phenolic)
Full strength 24 hours

Typical Performance of Cured Adhesive

Shear strength (ISO4587) Steel 19-23 N/mm² (2800-3300psi)
Aluminium 13-15 N/mm² (1900-2200 psi)
ABS >6 N/mm² (900psi) SF**
PVC >6 N/mm² (900psi) SF**
PC >5 N/mm² (700 psi) SF**
Impact strength (ASTM D-950) 5-10 kJ/m² (2.4-4.8 ft-lb/in²)
Peel Strength (ASTM D-903) 40-60 N/25mm (9-13 PIW)
Tensile strength (ISO6922) 25 N/mm²
Coefficient of thermal expansion 90 x 10-6 mm/mm/°C
Coefficient of thermal conductivity 0.1 W/(m.K)

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