Moisture Curing Polyurethane Adhesive, Model VT-2245-2

Moisture Curing Polyurethane Adhesive, Model VT-2245-2
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VT-2245-2 moisture curing polyurethane adhesive is a reactive adhesive whose basic reactant is polyurethane prepolymer. Users can immediately continue to process products after dispensing the adhesive and curing via moisture. The cured adhesive features a high impact resistance. After curing, operators can also remove the adhesive through mechanical methods, then cure it again.

The buff VT-2245-2 adhesive bonds a variety of materials, including metal, plastic and glass. It is primarily used to bond and seal handheld device structures, such as cellphone, laptop, battery, and touch screen frames.

Parameters
Color Solid content Opening time Temperature range Smell Density Viscosity Warm-up time and temperature Gap fill Package
Buff 100% 2~4(min) 90~110 Light 1.10 ± 0.05 (g/cm3) 4,000 ± 1,000(mPa.s) 100 ℃ for 20-30 min 0.127mm Injector 30ml
Operation

Pre-cleaning: The base materials must be clean, dry and free from oil.

Using: You can use the VT-2245 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-2245 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.

Removing: 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.

Storage
  • 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.
Tensile test
Lateral tensile strength(Mpa) 10min 1h 2h 3h Impact strength (mj) 10min
PC/30%GF+Ink glass 0.71 1.54 3 6.77 PC/30%GF+ Tempered Ink glass 315
PC/30%GF+Ink glass 0.62 1.48 2.1 6.5 SS301+ Tempered Ink glass 90
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