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Zinc Stearate

Type: Lubricant

Development / Applications

Zinc stearate is a white powder obtained by reacting zinc oxide with vegetable-based stearic acid. Due to its properties, it is widely recommended as a secondary stabilizer and lubricant in the production of PVC compounds. It is the best mold release agent among all metallic stearates (soaps). It contains no electrolytes and has a hydrophobic effect. In foaming applications, particularly in conjunction with azodicarbonamide, it acts as a thermal activator, reducing the decomposition temperature of the foaming agent.It is also used as a lubricant and antistatic agent for crystal polystyrene (GPPS) and expanded polystyrene, as well as an anti-tack agent for rubber extrusions. This additive is also used in the manufacture of cosmetic products.Food Packaging Approval:Complies with FDA 21 CFR 178.2010; This substance may be safely used as an antioxidant and/or stabilizer in polymers used in the manufacture of articles or components of articles intended to be used in the production, manufacture, packaging, processing, preparation, treatment, packing, transporting, or holding food.
Storage
This product should be stored at normal room temperature. Once opened, the packaging should be tightly resealed.
The safety data sheet for this material is available upon request. Prolonged skin contact may cause irritation. Those handling this product should wear safety glasses and rubber gloves. In case of eye contact, rinse immediately with plenty of water. Wash exposed skin with soap and water.
20 kg bags
Download technical data sheet
Physical PropertiesSpecification
Appearance Fine powder; white to off-white
Density (g/cm³)0.17-0.32
Moisture (%)0.0-1.0
Free fatty acids (%)0.0-0.8
Fineness through 325 mesh (%)98.0 Min.
Total ash (%)13-15

 

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