Standards for the quality of hot melt adhesives

2021/04/21

The color requirements of EVA hot melt adhesive should be different.

If there is no special requirement for its color, it is recommended to use yellow hot melt adhesive. Generally speaking, the viscosity of yellow hot melt adhesive is better than that of other colors.

 

The viscosity of EVA hot melt adhesive is divided into early viscosity and late viscosity.

In EVA, only the front tack and the back tack are consistent to keep the hot melt adhesive and the adhesive stable. Therefore, in the production of EVA hot melt adhesive, it should be ensured that it is resistant to oxygen, halogen, acid and alkali, and plasticity. The viscosity of EVA hot melt adhesive varies from material to material, so different hot melt adhesives should be selected according to different materials.