Calcium stearate is a kind of organic compound, the molecular formula is C₃₆H₇₀CaO₄, white powder, insoluble in water, can be used as waterproof agent, lubricant and plastic auxiliaries.

For PVC heat stabilizer and a variety of plastic processing lubricant, release agent. In hard products, the gelation rate can be improved by the combination of lead salt and lead soap. It is also used in food packaging, medical appliances and other non-toxic soft films and appliances. It can also be used as halogen absorbent for polyethylene and polypropylene to eliminate the adverse effect of residual catalyst on color and stability. As plasticizer in rubber processing, it can soften natural rubber and whole rubber, but has little effect on vulcanization. It IS ALSO USED AS a lubricant FOR polyOLEFIN fibers and moulding plastics, as a thickening agent for lubricating grease, as a waterproof agent for textiles, as a smoothing agent for paints, as a plasticizer for making plastic records, etc. Polyethylene, polypropylene as halogen absorbent; Phenolic, amino and other thermosetting plastics lubricants and release agents; Thickening agent of grease; Waterproof fabric waterproof agent; Paint smoothing agent and lubricant of pencil lead. Food grade calcium stearate is used as an anticoagulant. Calcium stearate is also used in pencil lead production and medicine, spices industry.

Precautions: In closed operation, pay attention to ventilation. Operators must be specially trained and strictly follow the operating procedures. It is recommended that operators wear self-priming filter type dust mask and chemical safety protective glasses. Keep away from fire and heat. No smoking in the workplace. Use explosion-proof ventilation systems and equipment. Avoid dust. Avoid contact with oxidants. Handling should be light, to prevent damage to the packaging and containers. Equipped with corresponding varieties and quantities of fire equipment and leakage emergency treatment equipment. Empty containers may retain harmful substances.

Storage precautions: Store in a cool, ventilated warehouse. Keep away from fire and heat source. Should be stored separately from the oxidant, do not mix storage. Equip the appropriate type and quantity of fire fighting equipment. The storage area shall be equipped with suitable materials to hold the leakage.