Desiccant masterbatches it was commonly referred to as defoaming masterbatch. Plastic product injection and, Including extrusion film process constructed with plastic raw material melt with high temperature by extrusion molding equipments. The standard of plastic product is directly and closely related to the compaction and drawback rate for molding product. The moisture content in raw material will directly impact to the quality of plastic product. The moisture will become steam in the approach to plastic product and lead to drawback with bubble, Crackle, Spot and hole in plastic product, To confirm that it influence the mechanics property and appearance of plastic product. To achieve improve the quality of plastic product and wipe off the moisture in currently people, Raw material mainly adopt heating and drying the base ingredient before process. This process needs manufacturertor buy additional drying equipments with high temperature. Increase the production, Technology process cost and labour. Desiccant masterbatches is a new high technology functional masterbatches uniquely crafted to remove the water, Bubble and drawback in plastic product with pe, Pp, Pvc, Abs, Eva, Ps and pa as raw material. When adding desiccant masterbatches, Do not need drying process for plastic and reduce, Raw material the cost of plastic product, Increase production efficient and largely improve the mechanics property and appearance of plastic