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Zinc, Oxide

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Price: From $8.60 to $241.54
Manufacturer: Zinc Nacional
Part No: MZINC

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Zinc Oxide

In smalls amounts zinc helps in the development of glossy and brilliant surfaces the way lead did. ZnO has a high refractive index.
ZnO is a low expansion secondary flux which is handy to prevent crazing if used for, or instead of, high expansion fluxes. It improves elasticity so that glazes which might otherwise craze or shiver will fit.
In moderate to high amounts it acts to produce mattes and crystalline surfaces, especially if supersaturated (up to 0.8 molar) and cooled slowly (produces crystal phases like Zn2SiO4, that is, willemite). However, these crystalline surfaces can be rough enough to cause cutlery marking.
Zinc has a complicated color response. It can have harmful and helpful effects on blues, browns, greens, pinks and is not recommended with copper, iron, or chrome.
Zinc can improve durability in some glazes. In others it can reduce resistance to acid attack.
Safety Data Sheet

Warning. This product can expose you to chemicals including crystalline silica (airborne particles of respirable size), which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov Health Hazard Warning
  • Please handle all raw materials with safety in mind. The Dry form of all clay, glaze, and raw materials can expose you to hazards when not handled properly.
  • When handling and mixing DRY ceramic materials and powders, wear a full breathing respirator, eye protection, and gloves to protect your lungs and hands
  • PROP 65 WARNING FOR RESPIRABLE SILICA
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