PUT3220-2-3 Two-component Polyurethane Potting Adhesive
PUT3220-2-3 is a synthetic polyurethane potting adhesive comprising two liquids, PUT3220-2-3 A and PUT3220-2-3 B. It offers easy application, moderate hardness upon curing, strong adhesion, weather resistance, flame retardancy, and electrical properties. Additionally, it meets EU REACH and 80832.0 standards along with other environmental regulations.
TYPICAL APPLICATION
This item is ideal for securely potting new energy battery modules, capacitors, power supplies, controllers, and various other electronic and electrical devices.
Specifications
TYPICAL PROPERTIES
| Item | PUT3220-2-3A | PUT3220-2-3B | |
| Before curing | Exterior | Brown liquid | Black liquid |
| Viscosity(cps) 2 | 80 ± 50 | 20000 ± 5000 | |
| Density(g/cm².25°C) | 1.1 ± 0.05 | 1.7 ± 0.05 | |
| After mixing | Mixing ratio ( by weight ) | A : B = 20 : 100 | |
| Open time (130g, 25 °C) | 30 ± 5 min | ||
| Tack free time (130g, 25 °C) | 3-4h | ||
| Fixed time(130g, 25°C) | 6-8h | ||
| Solid change back | Color | black | |
| Hardness(shore A) | 80 ± 5 | ||
| Application temperature(℃) | – 40 – 130 | ||
| Water absorption (24H) | ≤ 0.5% | ||
| Glass transition temperature | 15°C | ||
| Shear strength (MPa Al-Al) | ≥ 2 | ||
| Thermal conductivity (W/mk) | ≥ 0.85 | ||
| Volume resistivity (cm) | ≥ 1.0 x 10¹⁴ | ||
| Dielectric strength (kV/mm) | ≥17 | ||
| Dielectric constant (bt 50Hz) | 3-6 | ||
| Flammability rating, UL94 | V0 | ||
Technical Documents
PUT3220-2-3 Technical Data Sheet
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