Water Based PU Adhesive

Water Based PU Adhesive

The water based PU adhesive is mainly used for bonding PVC, PU, fabric, leather, EVA, rubber, and TPR etc in footwear industry. It is heat-resistant and of strong bonding strength. Thermal activation is need before bonding.

Details

Advantages of water based PU adhesive

1.Free of VOC, safe to environment and worker's health

2.Cost saving, consumption is less than solvent based PU adhesive.

3.Water solvent, safe for transportation and storage, which lower shipping cost

4.Almost no odor, the air in workshop can be improved.

 

Model: HN-820W


Application of water based PU adhesive

The water based PU adhesive is mainly used for bonding PVC, PU, fabric, leather, EVA, rubber, and TPR etc in footwear industry.


Physical Properties

Appearance: milky white liquid

Solid Content : 45-50%

Viscosity : 3500-4500CPS/25℃

Heat Resistance: 55-60℃

Drying Time: 10-15min

 

Usage

Brushed with small brush or machine. Heat activation is required after brushing glue.

Hardener can be used if there is higher requirement on heat resistance and water resistance.


Cementing process

Identify the material→clean the material surface→brush primer→dry in oven(70℃±5℃X3-5’) →cementing→dry in oven(70℃±5℃X4-5’) → attaching → press → cooling → clear up→ packing


Improper cementing will lead to following outcome.

If the cement layer is too thick, it will not dry completely, which will affect the bonding effect.

For uneven cementing, part of the material surface will accumulate cement, lack of cement or blister.

 

Packing

Packed in plastic drum.

Net 20kg/drum.

Net 25kg/drum.

 

Shelf Life and Storage

Under 5-30℃, the adhesive can be stored within 3~6 months. The storage temperature should NOT be under 0℃.



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