Calcium metasilicate

Inorganic chemicals

Wollastonite is a naturally occurring calcium silicate mineral (CaSiO) renowned for its exceptional combination of physical and chemical properties, making it a preferred functional filler across diverse industrial applications. With its unique intrinsic characteristics, it delivers outstanding performance enhancements to base materials while adhering to environmental and safety standards.Core Characteristics

Superior Whiteness: Boasts excellent high whiteness (typically≥90%), ensuring exceptional optical properties for end products. It maintains color consistency even under harsh processing conditions, eliminating yellowing or discoloration risks. This trait makes it an ideal choice for applications requiring bright, uniform surfaces, reducing the need for additional whitening agents.

Low Oil Absorption: Features extremely low oil absorption rate, which minimizes the consumption of binders, resins, or lubricants in formulations. This not only optimizes production costs but also enhances the fluidity and processability of mixtures, ensuring smoother molding, coating, or extrusion processes.

Excellent Thermal Stability: Exhibits remarkable thermal stability with a high melting point (over 1540°C) and resistance to thermal degradation. It retains its structural integrity and performance even under elevated temperature processing or long-term exposure to heat, effectively improving the heat resistance and dimensional stability of composite materials.

Outstanding Chemical Stability: Demonstrates strong resistance to acids, alkalis, and most organic solvents. It does not react with common matrix materials, ensuring long-term durability and reliability of products in harsh chemical environments. This stability also prevents material degradation, extending the service life of end applications.

Non-Toxic & Environmentally Friendly: Is inherently non-toxic, odorless, and free of harmful heavy metals or volatile substances. It complies with global environmental and safety regulations (such as RoHS, REACH), making it suitable for use in food-contact materials, medical accessories, and consumer products requiring high safety standards.