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Desiccant Masterbatches

  • Desiccant Masterbatches it was also known as defoaming masterbatch. Plastic product including extrusion, injection and film process is made of plastic raw material melt with high temperature by extrusion molding equipments. The quality 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 process of plastic product and lead to drawback with bubble, crackle, spot and hole in plastic product, so that it influence the mechanics property and appearance of plastic product.
  • In order to improve the quality of plastic product and wipe off the moisture in raw material, currently people mainly adopt heating and drying the raw material before process. This process needs manufacturertor buy additional drying equipments with high temperature. Increase technology process, the production cost and labour.

  • Desiccant masterbatches is a new high technology functional masterbatches specially designed 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 raw material, and reduce the cost of plastic product, increase production efficient and largely improve the mechanics property and appearance of plastic product.


defoaming masterbatch masterbatches is non-toxic, non-contamination, no influence to property for plastic product. In the process of molding, desiccant masterbatches can strongly absorb the moisture in plastic raw materials. It can increase product quality and the rate of finished products, improve obviously productivity and reduce energy consumption.

We can manufacture desiccant masterbatches according to customers` requirement for colors. There are two common colors in the Following pictures.

Plastic defoaming masterbatch Plastic defoaming masterbatch

Properties and advantages

  • 1. Water absorbability: can absorb water equivalent to 20% of the weight of antifoaming masterbatches.
  • 2. Processing property: perfect processing performance, good compatibility with plastic material. Suitable for general processing equipments. Do not change processing technology.
  • 3. Environmental protection: non-toxic, non-stimulation, excellent plasticizing, etc.

It is widely used in PP, PE, LDPE, LLDPE, HDPE, PVC, ABS, EVA, PS, PA and other recycled plastic material and the process for degradation plastic.

User guide:

  • Recommended dosage for plastic product processing: 1%-5%. 5%-10% dosage for sheet, tubes and pipes. Adjust the dosage according to the moisture content in raw material. Do not need to dry the plastic raw material and filler.
  • Without changing of plastic raw material processing technology.
  • Antifoaming masterbatches should be stored in vacuum sealing package, Use up after opening to avoid invalidation due to absorb moisture.