PUF3401 – Two-part Polyurethane Foam for Electronic Devices
PUF3401 is a two-component polyurethane foam that is suitable for various applications in electronics, such as sealing, encapsulating, potting, and casting. PUF3401 is ideally used for sealing and protecting various outdoor communication, electronic, and lighting equipment cabinets, shock absorption, cushioning, sound insulation, protection, insulation, heat insulation, and thermal runaway prevention in power batteries, especially in electric vehicles.
Features and benefits
- Good fluidity, and good operation performance.
- Non-toxic, non-dangerous.
- After curing, the foam density distribution is uniform and the thermal conductivity is low.
- Good elasticity after curing. Good bonding strength to metals such as Aluminum.
Specifications
TYPICAL UNCURED PROPERTIES
| Properties | PUF3401-A | PUF3401-B |
| Appearance | Liquid | Liquid |
| Color | Light Green | Light Yellow |
| Viscosity @25°C, GB/T 2794, cps | 1,800 ~ 2,200 | 150 ~ 250 |
TYPICAL CURING PROPERTIES
| Properties | PUF3401 |
| Mix Ratio (A:B) by Weight | 1 : 1 |
| Pot Life @ 25°C, GB/T 7123.1, min | 5~10 |
| Start Foaming Time, min | 0~4 |
| Complete Foaming Time, min | 10~30 |
| Molding Time, min | 60~120 |
TYPICAL CURED PROPERTIES
| Properties | PUF3401 |
| Hardness, GB/T531, Shore D | 20~30 |
| Shear Strength Al-Al,
GB/T 7124, MPa |
4.0 |
| Tensile Strength, GB/T528, MPa | 6.0 |
| Elongation at Break GB/T528, % | 13 |
| Thermal Conductivity,
ASTM D5470, W/mK |
<0.2 |
| Density, GB/T 13354, g/cm3 | 0.3~0.5 |
| Dielectric Constant @ 50Hz, GB/T1694 | ≤4.0 |
| Foaming Ratio @ different process conditions, time | 2~4 |
Technical Documents
Technical Data Sheet
How can we support you?
If you need any assistance, do not hesitate to contact us
