Barium sulfate: A filler for cost reduction and efficiency improvement in thermosetting molding plastics

In the production of thermosetting molding compounds (such as phenolic and epoxy molding compounds), problems like insufficient luster and poor texture of the finished products are often encountered. Uneven curing of the material is prone to defects such as shrinkage cavities and deformation, and the rework cost is relatively high.

Barium sulfate is a functional filler that can specifically improve these problems. The following are its core functions and recommended compatible products:

1.The key value of barium sulfate for thermosetting molding compounds
(1) Enhance the appearance and texture of the finished product
The high gloss of high-quality barium sulfate can directly optimize the surface gloss and visual texture of molding plastic products, meeting the appearance requirements of terminal products.

(2) Reduce curing defects
Uniform particle size can make the curing process of materials more synchronous, avoid local curing being too fast or too slow, reduce problems such as porosity, shrinkage cavities and deformation, and improve the yield of finished products.

2. Compatible product: Modified precipitated barium sulfate
In light of the core demands of thermosetting molding compounds, modified precipitated barium sulfate is a more suitable choice, with its core characteristics precisely matching the pain points of plastic processing:

High gloss meets the appearance requirements: It features "high gloss", which can directly enhance the surface gloss and texture of thermosetting molding products, meeting the appearance requirements of terminal products. At the same time, its whiteness reaches 97.5, which can also meet the color matching requirements of light-colored molding plastics.

Uniform particle size reduces curing defects: The characteristic of "uniform particle size" enables more synchronous heat conduction during the curing process of molding compounds, avoiding uneven local curing, effectively reducing defects such as shrinkage cavities and deformation, and lowering rework costs. Avoid problems such as color impurities and performance fluctuations in the finished products to ensure the consistency of quality in mass production.

3. Practical application effect
Our client, an enterprise that produces epoxy molding compounds, has seen a significant improvement in the surface gloss and texture of the finished products after switching to this product. The curing defect rate has decreased, and the stability of the product quality has been directly enhanced.

If your production also has problems such as insufficient gloss of the finished product and many curing defects, this modified precipitated barium sulfate can effectively improve them. Contact us quickly to get a free sample.