Barium Sulfate Filler in Plastic Extrusion

Technical Additive for High-Density Compounds

Barium sulfate is a high-density inorganic filler used in the extrusion of thermoplastic compounds to modify the mechanical and optical properties of the final material. In the extrusion process, barium sulfate increases the mass of the finished part, improves rigidity and opacity, and contributes to the compound's chemical resistance, while maintaining good processability along the entire line. Bausano does not sell barium sulfate or other additives, but designs and builds extrusion lines for processing compounds filled with this barium sulfate filler. Bausano lines efficiently process high-filler compounds containing barium sulfate, ensuring uniform, consistent mixing along the entire extrusion profile.

Compounding with Barium Sulfate: Sectors and Benefits of Use

Barium sulfate is used in compounds for technical production across various industrial sectors. Key applications include:

Automotive, to increase mass and improve the thermal inertia of plastic components
Construction, to obtain profiles and panels with greater dimensional stability
Electrical, for items requiring opacity and controlled rigidity
Technical packaging, where thickness and protection from chemical agents must be combined

Compatible with polymers such as PVC, PP, PS, and ABS, barium sulfate can be used even at high percentages without compromising processability.

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Functional Benefits in Compound Formulation

Integrating barium sulfate allows precise calibration of the finished material's properties. In particular, it:

Increases compound density, useful for components with structural or anti-vibration functions
Improves opacity and allows for more uniform coloring
Provides rigidity and dimensional stability, even in aggressive environments
Offers chemical resistance to solvents and external agents
Promotes a more compact surface, reducing visual and tactile imperfections

Bausano Extrusion Lines for Filled Compounds

Bausano technologies are developed to manage the extrusion of barium sulfate and other high-filler materials, on both single-screw and parallel twin-screw extruders. Dedicated screw configurations ensure homogeneous mixing and process stability even with high percentages of barium sulfate. Integrated control systems allow every parameter to be adjusted according to the formulation, improving product quality and the line's overall efficiency. As a plant manufacturer and technical partner, Bausano supports its customers in fine-tuning recipes containing barium sulfate, helping select the most suitable materials and the optimal plant configuration.

A starting point to define the right solution together

By filling in the form below, it is possible to describe specific technical or production requirements. The technical team will carefully evaluate the request in order to propose the most suitable extrusion line or extruder.