PERMABOND® TA4205 is a 2-part, 1:1 toughened acrylic adhesive. It can be used to bond a wide variety of materials including metals, plastics, GRP, ceramics, wood and other substrates. It is convenient to use in an easy-to-dispense cartridge or it can be used bead on bead without a mixing nozzle.
FEATURES AND BENEFITS
- Adhesion to a wide variety of substrates
- Slower cure version of TA4204
- Can be used with or without nozzle
- High shear and peel strength
- Good impact strength
- Good chemical resistance
- Clear appearance
Physical Properties of Uncured Adhesive
|
TA4205 A |
TA4205 B |
Chemical composition |
Methacrylates |
Methyl methacrylate |
Colour |
Clear, colourless |
Clear, colourless |
Mixed colour |
Clear, colourless |
|
Viscosity @ 25°C |
67,000 mPa.s (cP) |
3,000 mPa.s (cP) |
Specific gravity |
1.0 |
1.0 |
Typical Curing Properties
Ratio of use |
1 : 1 |
Maximum gap fill |
1 mm (0.04 in) |
Gel time (4g mixed) |
3-5 minutes |
Fixture time @23°C |
6-8 minutes |
Handling time (0.3 N/mm² shear strength is achieved) @23°C |
8-10 minutes |
Working strength @23°C |
25-30 minutes |
Full cure @23°C |
24 hours |
Typical Performance of Cured Adhesive
Shear strength (ISO4587)* |
Steel: 19-21 N/mm² (2800-3000 psi) Aluminium: 18-20 N/mm² (2600- 2900 psi) PMMA: 3-5 N/mm2 (440-730 psi) ABS: 5-7 N/mm2 (730-1020 psi) Polyester GRP: 7-9 N/mm2 (1020- 1300 psi) Epoxy FRP: 3-5 N/mm2 (440-730 psi) |
Peel strength (ISO4578) |
150-250 N/25mm (34-57 PIW) |
Hardness (ISO868) |
50-60 Shore D |
Coefficient of thermal expansion (ASTM D-696) |
80 x 10-6 1/K |
Thermal conductivity (ASTM C-177) |
0.1 W/(m.K) |