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Isocyanate-terminated polyurethane prepolymer is the major ingredient of reactive polyurethane hot melt glue. PUR has strong bonding strength, temperature resistance, chemical corrosion resistance, and aging resistance. Its adhesion and toughness (elasticity) can be modified. It has developed into one of the crucial varieties in the adhesive market in recent years. It is now widely used in a variety of national economic sectors, including packaging, wood processing, automotive, textile, electromechanical, and aerospace.
| Article | Surface drying time | Hand feel | Operation Condition | RecommendedBonding Conditions | Curing Time(Hours) | Intervals between dotting & heat press(mins) |
|---|---|---|---|---|---|---|
| H6 | Slow(Eight minutes) | Very Soft, Stretchable | Softening Point: 110 - 130℃Spraying Temperature: 200 - 230℃ | Machine Setting: 55 - 95 °CDwell Time: 8 - 12 secondsPressure: 1 – 1.2 Bar | ≥24h | ≤ 30 mins |
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The main component of reactive polyurethane hot melt adhesive is isocyanate-terminated polyurethane prepolymer. The adhesion and toughness (elasticity) of PUR can be adjusted, and it has excellent bonding strength, temperature resistance, chemical corrosion resistance, and aging resistance. In recent years, it has become one of the important varieties in the adhesive industry. Now it is widely used in packaging, wood processing, automobile, textile, electromechanical, aerospace, and other national economic fields.
Solventless, so environmentally friendly.
One-component reactive type.
Three types of reactive forms are provided, moisture curing, UV curing, and moisture curing + UV curing.
Easy handling because it melts at low temperatures.
This leads to increased productivity because it exhibits high initial bonding strength.
Possess excellent bonding strength and durability (heat resistance, moist heat resistance, solvent resistance).
Functions such as moisture permeability, moisture resistance, and flame resistance can be added.
Outside of adhesives, can be used in melt forming, films, and gaskets.
