PERMABOND® ET5428 BLACK is a thixotropic two-part adhesive with excellent resistance to impact and vibration. The controlled flow properties as well as its ease of mixing and application, enables the adhesive to be used where gap filling is required. Permabond® ET5428 BLACK has been found to provide exceptional performance even at elevated temperatures.
Permabond® ET5428 BLACK has been specifically formulated for use in applications requiring toughness and high strength and shows special benefits in the construction of composite assemblies.
FEATURES AND BENEFITS
- Ideal for bonding composite materials
- Easy to apply
- High shear and peel strength Rapid cure speed
- High temperature resistance
- Colour matched for carbon fibre bonding
Physical Properties of Uncured Adhesive
|
|
ET5428 BLACK A side |
ET5428 BLACK B side |
|
Chemical composition |
Epoxy Resin |
Polyamine Hardener |
|
Appearance |
White |
Black |
|
Mixed appearance |
Charcoal black |
|
|
Viscosity @ 25°C |
20rpm: 115,000 mPa.s (cP) 2rpm: 300,000 mPa.s (cP) |
20rpm: 200,000 mPa.s (cP) 2rpm: 1,100,000 mPa.s (cP) |
|
Specific gravity |
1.1 |
1.1 |
Typical Curing Properties
|
Mix ratio |
2:1 by volume 2:1 by weight |
|
Maximum gap fill |
5 mm 0.2 in |
|
Usable / pot life @23°C 10g mixed |
10-20 mins |
|
Handling time |
23°C: 30-45 mins |
|
Working strength |
23°C: 1 hour 60°C: 15 minutes |
|
Full cure |
23°C: 24-48 hours 60°C: 1 hour |
Typical Performance of Cured Adhesive
|
Shear strength* (ISO4587) |
Mild steel: 28-34 N/mm² (4060-4930psi) Aluminium: 22-28 N/mm² (3190-4060psi) Stainless Steel: 29-35 N/mm² (4205-5075psi) Carbon Fibre: >25 N/mm² ** SF (>3625psi) FRP Glass/Polyester: >9 N/mm²** SF (>1305psi) FRP Glass/Epoxy: 24-28 N/mm² (3480-4060psi) PEEK: 4-5 N/mm² (580-725psi) PA6 30% filled: 3-4 N/mm² (435-580psi) |
|
Peel strength (aluminium) (ISO4578) |
150-250 N/25mm (33-55 PIW) |
|
Impact strength (ASTM D-950) |
30-40 KJ/m² |
|
Hardness (ISO868) |
65-75 Shore D |
|
Elongation at break (ISO37) |
<5% |
|
Glass transition temperature Tg |
50-60°C (122-140°F) |
|
Dielectric strength |
15-25 kV/ mm |
