How To Identify The Quality Of EPP Packaging Materials

 The quality of EPP packaging materials mainly depends on the uniformity of the pores of the material and the foaming speed of the particles. In general, if there is no obvious problem between the two, then it is considered that the quality of the foam material is relatively good.

 We first look at the pore uniformity of the material. If the aperture distribution of EPP foam is narrow and the aperture size is consistent, then its production quality is relatively high. The narrower and more consistent the aperture, the better the production quality. This is also a common way to distinguish, the above can see whether the foam is uniform, the more uniform the foam material, the better it is used.

 Then look at the foam product particle foaming degree and foaming rate. High or low foaming rate is not very good. If the foaming rate is low, the insulation effect of the foaming material is not good. High foaming rate will lead to insufficient strength of foamed products. Therefore, the foaming rate of EPP particles is a difficult problem to control and difficult to produce. In order to produce qualified foam products with good insulation and impact resistance, it is necessary to master the appropriate foaming rate.