One of the primary uses of china clay in the fiberglass industry is as a filler material. It helps in improving the mechanical strength, durability, and heat resistance of fiberglass products. By incorporating china clay, manufacturers can produce fiberglass with better tensile strength and reduced brittleness, making it suitable for a wide range of applications.

China clay also contributes to the improved processing characteristics of fiberglass. Its fine particle size and uniformity ensure a smooth and consistent mixture when combined with other raw materials. This results in a more homogeneous fiberglass composite, reducing the likelihood of defects and ensuring a high-quality finish.

Additionally, the plasticity of china clay allows for easier molding and shaping of fiberglass products during the manufacturing process.

Another important aspect of china clay is its thermal stability. Fiberglass products are often subjected to high temperatures during both manufacturing and end-use. The inclusion of china clay helps in maintaining the structural integrity of the fiberglass under such conditions, preventing deformation and degradation.

Moreover, china clay can enhance the surface properties of fiberglass. It provides a smooth and polished finish, which is aesthetically pleasing and can improve the material’s resistance to weathering and chemical attack. This makes fiberglass products more durable and long-lasting, even in harsh environments.