This ceramic grade wollastonite powder stands out from competing fillers due to its ultra-high purity and consistent particle size distribution, which uneven glaze application and surface defects on finished ceramic products. Its low moisture content prevents steam bubble formation during the high-temperature firing process, reducing production waste by up to 8% compared to unrefined wollastonite fillers. The optimized pH range supports stable glaze formulation, allowing manufacturers to adjust glaze viscosity without sacrificing product performance. Additionally, this product is produced using a closed-loop purification process that minimizes environmental pollution, aligning with circular economy principles for sustainable manufacturing.
The detailed technical specifications of this 325 mesh ceramic grade wollastonite powder include a minimum SiO2 content of 92.0%, with trace amounts of Al2O3, Fe2O3 and MgO kept below 0.5% each to avoid discoloration of ceramic surfaces. The average particle size is precisely controlled at 45μm, with 99% of particles passing through a 325 mesh sieve to ensure uniform dispersion in glaze slurries. The moisture content is capped at 0.2% to prevent clumping during storage and transport, while the loss on ignition is limited to 1.5% to avoid excessive gas emission during firing. Each jumbo bag contains 1 metric ton of powder, with a sealed inner liner to protect against moisture ingress during shipping.
This ceramic grade wollastonite powder is primarily designed for the production of ceramic wall and floor tiles, sanitaryware, ceramic tableware and artistic ceramic products. It is added to glaze formulations at a dosage of 5-15% of the total raw material weight to improve the glossiness and scratch resistance of finished glazed surfaces. Additionally, it can be used as a filler in ceramic body formulations to reduce firing temperature and lower energy consumption in production lines. It is compatible with both dry and wet ceramic manufacturing processes, and has been validated for use in low-carbon ceramic production lines to help manufacturers meet global carbon emission reduction targets.
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