PERMABOND® 108 Cyanoacrylate

PERMABOND® 108 is an intermediate viscosity cyanoacrylate that is used to bond through intermediate gaps. It is fast setting and suitable for use on plastics, rubber and metals.

Cyanoacrylate adhesives are single component adhesives that polymerize rapidly when pressed into a thin film between parts. The moisture adsorbed on the surface initiates the curing of the adhesive. Strong bonds are developed extremely fast and on a great variety of materials. These properties make PERMABOND cyanoacrylates the ideal adhesives for high speed production lines.

FEATURES AND BENEFITS

Fast-setting
Some gap fill ability
Ideal for automated dispensing

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

0.25 mm 0.008 in

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

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 10-6 mm/mm/°C
Coefficient of thermal conductivity	0.1 W/(m.K)

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