Moisture Curing PUR Adhesive, Model VT-2237
VT-2237 moisture curing polyurethane adhesive is a reactive adhesive whose basic reactant is polyurethane prepolymer, has a viscosity up to 8000mp.s and can quickly position and bond components.
Before usage, the VT-2237 has an excellent flowability and after complete curing, the adhesive also has a high impact resistance and thermal stability. This makes the adhesive extremely popular for bonding and sealing the frame in electronic devices.
Parameters| Color | Solid | Opening time | Temperature range | Smell | Density | Viscosity | Warm up time and temperature | Gap fill | Package |
| Buff | 100% | 2~3(min) | 100~120 | Light | 1.10 ± 0.05(g/cm3) | 8,000(mPa.s) | 100 ℃ for 20-30 min | 0.127mm | Rubber tube 30ml |
Pre-cleaning: The base materials must be clean, dry and free from oil.
Usage: You can use the VT-2237 hot melt glue gun or injection hot melt machine to apply the melting adhesive. If there is a long pause during usage, a temperature reduction of the melting adhesive is necessary because long exposure to high temperatures reduces the adhesive's viscosity.
Curing: VT-2237 adhesive is a moisture curing hot melt adhesive, and the adhesive will be fully cured in as little as 1 to 5 days. The completely cured adhesive has a high impact resistance.
Removal: The solidified glue will be removed only through the use of mechanical methods. We recommend completely cleaning equipment before curing, and if necessary, take the equipment apart in order to eliminate any previous solidified adhesive.
Adhesion strength| Base material: PC/PC | 5min | 10min | 30min | 1h | 2h | 4h | 8h | 24h |
| strength（MPa） | 0.39 | 0.42 | 0.7 | 1.24 | 4.36 | 5.1 | 5.14 | 5.37 |
- The adhesive should be stored away from heat sources, frost and moisture, and remain in a cool, dark and dry environment.
- The best storage temperature is 5~25℃ and the quality guarantee period is 6 months if the rubber tube remains unopened and sealed.
