Quality, Openness, Togetherness, Trust and Technology


Home  »     »   CS & ZS


Calcium stearate (CS) and Zinc stearate (ZS) are Metallic stearates. Metallic stearates are lubricants used in multiple plastic and rubber applications. They act as lubricants and acid scavengers during the manufacturing process. It is also used as a co-stabilizer in PVC. Their high melting point enables faster, easier and smooth processing in various industries. 

Product Available at SNG Microns Private Limited

Calcium stearate (CS) Zinc stearate (ZS)

Calcium stearate (CS)
Calcium stearate (Chemical Name: Octadecanoic Acid Calcium Salt) is a carboxylate of calcium, classified as a calcium soap. It is a component of some lubricants, surfactants, as well as many others. It is a white waxy powder.

Calcium stearate is an odourless, white powder used in many manufacturing processes and preparations. It is a carboxylate created by heating stearic acid and calcium oxide.

Typical usages of Calcium stearate

Industry Typical Usages
Plastics Internal and External Lubricant in PVC Rigid Extrusion, Polyethylene Chain Length Modifier and a De-Dusting Agent
Rubber Release Aid, Adhesion Prevention
Food, Pharma and Nutraceuticals Mold Release for Tableting, Stabilizer, Emulsifier, Source of Calcium, Excipient, Anti-Tack Agent
Cosmetics Anti-Caking Agent in Powdered Cosmetics
Lubricants and Greases Thickening Agent
Personal Care Anti-Tack and Gelling Agent

 Calcium stearate has many potential uses, including as a flow agent, stabilizing agent and surface conditioner in the production of certain foods — notably, many candies. It is used as a mold-release agent for pharmaceutical tablets and capsules, as an anti-caking agent in cosmetics and as a thickener in lubricants and greases. It is also a stabilizer found in many plastics and is used to process concrete and paper.

Calcium stearate is harmless, and is insoluble in most solvents. Compared to waxes, it has a comparatively high softening point, and, consequently, do not become greasy at higher temperatures. Calcium stearate is primarily used as lubricant in the plastics industry, an acid scavenger, release agent and, for waterproofing in construction, and as an anti-caking additive in pharmaceuticals and cosmetics.

Typical Property of Calcium stearate (CS)

Parameters   Specifications
Appearance White Powder
Calcium Content % 6.8 – 7.4
Calcium Oxide (CaO) % 9.0 – 10.5
Moisture Content Max % 3.0
Heavy Metals, ppm Max 10
Ash Content % 9.0 – 10.0
Free Fatty Acids Max % 1
Mean Particle Size Micron Typical 10-12
Bulk Density (G/Cc) Typical 0.18
Melting Point °C 148 – 160
C16 0 – 56
C18 40 – 100

Zinc stearate (ZS)
Zinc Stearate is an oleochemical substance featuring a white, powdery appearance. Zinc Stearate has the ability to resist water and is insoluble in certain types of polar solvents. Zinc Stearate is formed by combining stearic acid with zinc oxide, the latter of which is an organic white-powder compound that is insoluble in water. While it does not produce a strong odour, Zinc Stearate powder does have a slight fatty acid scent.

There are many methods to manufacture Zinc Stearate. In addition to the direct method of combining stearic acid with zinc oxide, there is also an indirect method known as precipitation, which entails the formation of a solid from a liquid solution. The fusion method involves a high-shear process using tightly controlled pressure and temperature conditions.

Zinc Stearate offers a number of chemical properties that are invaluable from a manufacturing perspective.

Key benefits of Zinc stearate (ZS)

Lubricity Compatibility
“Sharp” melting point Hydrophobicity

The above-mentioned key benefits differentiate Zinc Stearate from other metallic stearate materials.

Typical usages of Zinc stearate (ZS)

Industry Typical Usages
Plastics Zinc Stearate (ZS) is a highly effective pigment dispersion aid and lubricant in PVC, polyethylene and ABS production. Zinc Stearate also acts as a scavenger for acidic residues in polyolefin manufacture and is used as a mold release agent and process lubricant in the production of polystyrene.


Rubber Zinc Stearate serves as an internal lubricant in molded rubber production and as an external lubricant or dusting agent with excellent anti-block properties. Zinc Stearate (ZS) uses in rubber manufacturing is as a release agent, as well as an activator for rubber vulcanization
Paint and coatings improves the abrasiveness of sandpapers and matting agent
Construction Hydrophobic agents for plasters
Cosmetic Zinc Stearate (ZS) acts as an anti-caking agent in powdered cosmetics. Other uses of Zinc Stearate in cosmetics include as a lubricant, as well as a thickening agent for enhancing texture

Typical Property of Zinc stearate (ZS)

Parameters   Specifications
Zinc Content % 10.6 – 11.25
Total Ash (as ZnO) % 12.75 – 14.50
Moisture Max % 0.5
Free Fatty Acid Max % 1.5
Soluble Salts % Nil
Melting Point ºC 117 – 125

 Why to buy from SNG Microns Private Limited
We at SNG Microns offers Calcium Stearate (CS) and Zinc Stearate (ZS) for various industrial applications. As one of the leading distributors of oleochemicals in the eastern India with more than 25 years of experience, you can count on us for superior Zinc Stearate and Calcium Stearate products at competitive prices.


Powered by WhatsApp Chat

× How can I help you?