Product code: 268

Manufacturer: Permabond

Package size: 1 Ib

Shelf Life:

PERMABOND® 268 is a medium-high viscosity cyanoacrylate for large gap fill applications.


  • Versatile and general purpose
  • Good gap fill ability
  • Instant setting


  • Gap fill application

Physical Properties of Uncured Adhesive

Chemical composition Ethyl cyanoacrylate
Appearance Colourless
Viscosity @ 25°C 1,200-2,400 mPa.s (cP)
Specific gravity 1.1

Typical Curing Properties

Maximum gap fill 0.43 mm 0.017 in
Fixture / handling time* (0.3 N/mm² shear strength is achieved) 5-10 seconds (Steel)
5-10 seconds (Buna N Rubber)
5-10 seconds (Phenolic)
Full strength 24 hours

Typical Performance of Cured Adhesive

Shear strength (ISO4587) Steel 20-22 N/mm² (2900-3200 psi)
Impact strength (ASTM D-950) 3-5 kJ/m² (1.4-2.4 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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