Calcium Carbonate Powder (Whiting)

Premium Calcium Carbonate (CaCO₃) – High-Purity Whiting, Fine White Powder – The Reliable, Economical Flux for Versatile Ceramic & Glass Work

Discover the timeless workhorse of the ceramics world: calcium carbonate, widely known as whiting, the most accessible and trusted source of CaO for potters, tile makers, sanitaryware producers, glass manufacturers, and industrial applications. This ultra-fine, bright white powder (typically 98–99%+ purity) brings consistency, affordability, and essential performance to countless formulations.

Why stock our Calcium Carbonate (Whiting)?

• Delivers CaO as a powerful, stable flux in stoneware, porcelain, and mid-range glazes — lowering melt temperatures, promoting smooth vitrification, enhancing durability, and boosting chemical resistance to acids and wear.
• Creates reliable, satin-to-semi-matte surfaces and supports beautiful crystalline or subtle matte textures when balanced in glaze recipes — the backbone of many classic, dependable glazes that perform consistently kiln after kiln.
• Improves glaze suspension and workability thanks to its low specific gravity — keeps heavier ingredients from settling in your buckets for smoother application and fewer defects.
• Prevents crazing in low-fire earthenware bodies — add ~5% to reduce moisture expansion and keep glazes crack-free even in humid conditions.
• Acts as a filler/whitener in low-fire clays — cuts shrinkage, brightens bodies, and improves plasticity during forming and drying.
• Essential in glassmaking — introduces CaO to boost chemical durability, mechanical strength, clarity, and weathering resistance in flat glass, containers, and technical glass (decomposes cleanly to CaO + CO₂ in the melt).
• Versatile across tiles, tableware, sanitaryware, and more — controls viscosity, aids flow during glazing, and contributes to a smooth, professional finish.

Key Properties at a Glance:

• Chemical formula: CaCO₃
• Appearance: Super-fine, bright white powder
• Decomposes during firing (~700–900°C) to release CaO — the active flux — plus CO₂ for clean burnout
• Economical and widely available — the go-to CaO source for budget-conscious artists and high-volume producers

Whether you're blending dependable base glazes for production pottery, formulating scratch-resistant sanitaryware glazes, preventing crazing in functional ware, brightening low-fire bodies, or supplying the glass industry with a critical ingredient, this high-quality calcium carbonate delivers predictable, cost-effective results every time.

Safe and straightforward to use — standard precautions apply (gloves, mask when dry-mixing, good ventilation for dust).

The everyday essential that quietly powers stunning, reliable results in studios and factories worldwide. Add this foundational whiting to your materials today — the affordable flux that makes so much possible!

Available in artist-friendly bags and bulk industrial quantities. Order now and experience the dependable calcium advantage.