Zinc Stearate | 557-05-1

Cas No :

557-05-1

Synonyms :

Form :

Powder

Molecular Weight :

632.30 G/Mol

Molecular Formula :

C36H70O4ZN

Boiling Point :

360 °C

Solubility :

Insoluble In Water; Insoluble In Most Organic Solvents; Dispersible In Mineral Oils

Flash Point :

210 °C

Description :

Overview of Zinc Stearate

Zinc Stearate is a metal soap derived from zinc and stearic acid, widely used as a multifunctional additive in industrial manufacturing. It appears as a fine white powder and is valued for its lubricating, water-repellent, and release-enhancing properties across multiple processing environments.

For non-technical buyers, Zinc Stearate can be understood as a processing aid that helps materials flow smoothly, prevents sticking during manufacturing, and improves surface finish. Because of its stability and compatibility, it is commonly used in plastics, rubber, coatings, and speciality chemical formulations.

Zinc Stearate belongs to the metal stearates and speciality metal chemicals category, supporting efficient production and consistent performance in high-volume industrial applications.

Applications of Zinc Stearate

Plastics & Polymer Processing

Zinc Stearate is extensively used as a lubricant and release agent in plastic processing, including PVC, polyolefins, and engineering plastics. It improves melt flow, reduces friction, and prevents material adhesion to processing equipment. In polymer formulations, it is often used alongside additives such as Calcium Stearate and Magnesium Stearate for balanced lubrication systems.

Rubber & Elastomer Manufacturing

In rubber compounding, Zinc Stearate acts as a mould-release agent and processing aid. It enhances the dispersion of fillers and accelerators while improving the surface finish in finished rubber components.

Coatings, Paints & Surface Treatments

Zinc Stearate is used in coatings and paints to improve water resistance, sanding properties, and matting effects. It contributes to smoother application and enhanced film characteristics in industrial and decorative coating systems.

Powder Processing & Industrial Formulations

Due to its fine powder form and non-stick behaviour, Zinc Stearate is widely used in powder metallurgy, chemical blending, and speciality formulations. It supports consistent processing in applications requiring controlled flow and moisture resistance.

Safety & Handling Guidelines

  • Store in a cool, dry, and well-ventilated area

  • Keep packaging tightly sealed to prevent moisture absorption

  • Avoid the generation and inhalation of dust

  • Prevent direct contact with eyes and prolonged skin exposure

  • Use protective gloves, goggles, and suitable industrial clothing

  • Keep away from strong oxidising agents

  • Follow standard industrial material-handling practices

  • Dispose of packaging in accordance with local regulations

Where to Buy Zinc Stearate?

Zinc Stearate Manufacturer

Zinc Stearate is manufactured for use in plastics, rubber, coatings, and industrial processing applications requiring consistent particle size, purity, and performance characteristics.

Zinc Stearate Supplier & Distributor

Zinc Stearate is supplied in bulk and industrial-grade quantities for polymer processors, rubber manufacturers, coating producers, and speciality chemical companies. It is available for both domestic and international markets with standardised specifications and reliable supply support.

As a reliable chemical sourcing partner, established bulk supplier, and industrial distribution specialist, we assist manufacturers with steady access to metal stearates and processing additives, ensuring consistent quality, scalable volumes, and streamlined procurement.

Zinc Stearate MSDS

The Zinc Stearate MSDS provides essential information related to safe handling, storage conditions, exposure controls, first-aid measures, and emergency response. Users should review the Zinc Stearate MSDS before using the product in any manufacturing or processing environment.

Frequently Asked Questions (FAQs)

  1. What are the main applications of Zinc Stearate?

    Zinc Stearate is used as a lubricant, release agent, and processing aid in plastics, rubber, coatings, and powder-based industrial formulations.

  2. Is Zinc Stearate soluble in water?

    Zinc Stearate is insoluble in water but disperses well in organic systems, which makes it suitable for polymer and coating applications.

  3. What form is Zinc Stearate commonly supplied in?

    It is typically supplied as a fine white powder designed for easy blending and consistent dispersion.

  4. Can Zinc Stearate be used with other metal stearates?

    Yes, it is often formulated with calcium and magnesium stearates to optimise lubrication and processing performance.

  5. Is Zinc Stearate suitable for large-scale industrial use?

    Yes, Zinc Stearate is widely used in bulk manufacturing operations across plastics, rubber, and surface-treatment industries.