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) |
