In which industries is lithopone predominantly used as a filler?

Lithopone is primarily utilized as a filler in the rubber and paper industries due to its favorable properties. In rubber manufacturing, lithopone serves as a white pigment and filler that enhances the material's durability, weather resistance, and aesthetic qualities. This makes it valuable in applications like tires and various rubber products.

In the paper industry, lithopone contributes to the opacity, brightness, and smoothness of the paper, improving overall print quality and finish. Its ability to provide a bright white color without affecting the paper's texture makes it an attractive option for manufacturers.

Other industries, such as construction and painting, often use different types of pigments and fillers that are better suited for their specific requirements, thus making them less reliant on lithopone compared to rubber and paper applications.