从China供应商批发进口325 Mesh Wollastonite For Ceramics Grade — FOB条款

325 Mesh Wollastonite For Ceramics Grade from Shenyang Huakuang is a calcium silicate mineral powder (CaSiO3) processed to a 325 mesh particle size specifically for ceramic glaze applications. The material carries a minimum silica content of 50% as SiO2 and a minimum calcium oxide content of 43% as CaO, with iron oxide controlled to 0.5% maximum and magnesium oxide to 1.5% maximum. Loss on ignition is capped at 1.5%, and the powder exhibits a whiteness range of 88-91. The supplier lists this grade alongside 200 mesh, 1250 mesh, and 2500 mesh variants, indicating capability across multiple fineness levels.

The low iron content is a deliberate advantage for this supplier's material, critical for ceramic glazes where Fe2O3 above trace levels can introduce unwanted colouration and surface defects in fired ware. The controlled LOI of 1.5% maximum ensures minimal volatile matter release during high-temperature firing, reducing glaze pinholing and improving surface finish consistency. Standard industry practice for 325 mesh wollastonite specifies D97 passing 44 micrometres, though buyers should confirm the exact D50 and top-cut specifications with Shenyang Huakuang directly. The acicular crystal structure of wollastonite contributes to green strength in ceramic bodies and lowers thermal expansion in glazes.

Ceramic manufacturers in tableware, sanitaryware, and electrical insulator sectors use this grade to reduce sintering temperatures, accelerate firing cycles, and improve mechanical strength while reducing crazing and breakage. The fluxing action of calcium silicate allows partial substitution of feldspar and whiting in glaze formulations. Importers should verify the exact packaging format (typically 25 kg paper bags or 1 MT bulk bags for Chinese mineral exports), confirm whether the supplier provides certificates of analysis per batch, and establish whether sea freight terms are FOB Dalian or CIF destination port. The supplier's response rate of 0.00% indicates no historical quote data through the platform, so direct outreach is essential for current MOQ and lead-time confirmation.

Shenyang Huakuang is located in Shenyang, Liaoning Province, China, with a registered address in the 10000 postal code district of the city. The company holds a harbor-level trust tier and shows a response rate of 0.00% with zero average response hours recorded on the platform, which indicates no historical quoting activity rather than a verified non-responsive status. The supplier's profile does not disclose years in operation, factory size, production capacity, or employee count, so buyers should request this information directly during initial contact.

The listing focuses exclusively on wollastonite powder products for ceramic applications, with no mention of other mineral lines or downstream processing capabilities. Verification documents, export licences, and quality management certifications are not displayed in the available profile data, and should be requested from the supplier before committing to trial orders. Liaoning Province hosts significant wollastonite reserves, particularly in the Dandong and Chaoyang regions, so geographic proximity to raw material sources is plausible though unconfirmed by this profile.