PERMABOND® MT3809 is a 10:1, two-part, modified epoxy adhesive designed for potting applications. It has excellent adhesion to Nylon, ABS, Polycarbonate and other plastics. When cured, this adhesive is soft and reasonably flexible. Its low viscosity makes it suitable for potting intricate parts.
FEATURES AND BENEFITS
- Adhesion to a wide variety of substrates
- Full cure at room temperature
- Easy to apply
- Soft & flexible
- Self levelling
- Low viscosity
Physical Properties of Uncured Adhesive
|
MT3809A |
MT3809B |
Chemical composition |
Epoxy based resin |
Polyamine based hardener |
Appearance |
Grey |
Black |
Mixed appearance |
Charcoal black |
|
Viscosity @ 25°C |
20rpm: 6,000 – 10,000 mPa.s (cP) 2rpm: 15,000 – 25,000 mPa.s (cP) |
5,000-10,000 mPa.s (cP) |
Specific gravity |
1.3 |
1.1 |
Typical Curing Properties
Mix ratio |
10:1 by volume 12.5:1 by weight |
Usable / pot life @25°C |
10-12 mins |
Handling time to 0.1 N/mm² @25°C |
25-30 mins |
Full cure @25°C |
≥72 hours |
Typical Performance of Cured Adhesive
Shear strength (ISO4587) |
Mild steel: 6 – 8 N/mm² (900 – 1200 psi) ABS: 4-6 N/mm² (600-900psi) Acrylic: 3-5 N/mm² (400-700psi) Nylon: 3-5 N/mm² (400-700psi) Polycarbonate: 5-7 N/mm² (700-1000psi) PVC: 3-5 N/mm² (400-700psi) |
Hardness (ISO868) |
75-85 Shore A 20-30 Shore D |
Elongation at break (ISO37) |
150% |
Peel strength (aluminium) (ISO4578) |
60-80 N/25mm (13-18 PIW) |