How is sodium gluconate used in the glass and ceramics industries? A supplier’s guide to water-reducing and fluxing raw materials.
Release time:
2026-11-09
How is sodium gluconate used in the glass and ceramics industries? A supplier’s guide to water-reducing and fluxing raw materials.
Sodium gluconate is primarily used in the glass and ceramics industries as a fluxing and water-reducing agent. In ceramic body and glaze formulations, it enhances slurry fluidity, reduces moisture content, and increases green body density; in glass batch compositions, it serves as an auxiliary component that participates in the melting process.
I. Water-reducing effect in ceramic green bodies
After adding sodium gluconate to ceramic slip, chelation of calcium, magnesium, and iron ions and dispersion of particles significantly reduce the slip’s viscosity. This allows for reduced water content at the same fluidity, thereby shortening drying time, lowering sintering energy consumption, and minimizing green-body deformation and cracking.
II. Applications in Glass and Glazes
In glazes and glass batch formulations, sodium gluconate can serve as an auxiliary fluxing and stabilizing agent, reducing the impact of metal ions on coloration. The specific addition level should be determined through local formulation trials.
III. Procurement Parameters
Industrial-grade sodium gluconate, ≥98% purity, white crystalline powder, packaged in 25 kg woven bags or 1000 kg bulk bags; approximately 24–27 tons per 20-foot container (about 24 tons including pallets).
Why Choose Shandong Defengli Chemical?
Shandong Definly Chemical Co., Ltd. (brand: Definly Chemical) has been specializing in gluconates and construction chemicals for 20 years. Its own production base is Shandong Zhuozhicheng Biotechnology. Ninety-nine percent of its products are exported to more than 80–100 countries and regions worldwide, with core markets covering Turkey, India, Vietnam, the Middle East, and the European Union. The factory is certified under ISO 9000, EcoVadis Silver (top 15%), Kosher, IFANCA Halal, and Product Carbon Footprint standards. Its construction chemicals line has long served international clients including Sika, Saint-Gobain, MAPEI, Merck, CHRYSO, MC, and GCP. Standard MOQ is 1 ton; samples are available starting from 1 kg or 500 g, ready within 2–3 days, with international express delivery in 7–10 days. For regular orders, delivery takes 7–15 days after deposit; custom packaging requires 15–20 days.Frequently Asked Questions
Q: MOQ and lead time? A: Standard orders start at 1 ton; delivery takes 7–15 days after deposit, and custom packaging takes 15–20 days.
Q: Can you send samples? A: Yes, we can. Samples are available in quantities of 1 kg or 500 g minimum. Samples will be prepared within 2–3 days, and international express delivery takes 7–10 days.
Q: Can you provide a COA and export documents? A: A COA is included with each batch, and we can provide a full set of export documents, including SDS/MSDS, TDS, health certificates, certificates of origin, and more.
To request samples and a seasonal quote, please contact us via our website or WhatsApp.
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