Rubber & Plastics

Metallic stearates are compounds of long-chain fatty acids with metals of different valencies. The most important metallic stearates, in terms of quantity, are the metallic stearates of aluminum, calcium, magnesium, and zinc. Applications are widely varied. They are used for their lubricating properties, separating properties, water repellence, gelling capacity, stabilizing effect, foam inhibition, acid scavenging effect, and more.

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Calcium Stearate

shutterstock_519137797Calcium stearate is a fine, white powder. It is an insoluble salt of calcium, stearic acid, and palmitic acid.

Calcium stearate, which is recognized as physiologically safe, has become increasingly important in recent years. Calcium stearate is insoluble in most solvents. It dissolves only slightly when heated in aromatic compounds, chlorinated hydrocarbons or vegetable and mineral oils and waxes.

Calcium stearate is primarily used as a release agent, lubricant and acid scavenger by the rubber and tire industry.

Calcium Stearate
Chemical FormulaC36 H70CaO4
AppearanceFine, white powder
Molecular weight607
Specific gravity1.08
Moisture≤ 3.0%
Melting point155 °C
Particle Size≥ 98.0% through 200 mesh
Free Fatty Acid≤ 2.0%
Calcium stearate is packaged in 25 kg lined kraft paper bags. Super sacks and custom packaging are also available upon request.