Full Range of Industrial-Grade Stearates with High Purity & Excellent Dispersion

Calcium stearate

This white, light powder is insoluble in water, alcohol, and ether. It decomposes slowly when heated to 400°C and absorbs moisture in air. When exposed to strong acids, it breaks down into stearic acid and corresponding calcium salts. As a stabilizer and lubricant for polyvinyl chloride (PVC), calcium stearate exhibits synergistic effects when combined with zinc soaps and epoxides, enhancing thermal stability. 

It is used in non-toxic food packaging materials and flexible film devices for medical equipment. In polyethylene and polypropylene, it acts as a halogen absorber, eliminating residual catalysts that affect resin color and stability. Additionally, it serves as a lubricant and release agent in polyester-reinforced plastics, phenolic resins, and amino resins, as well as a grease thickener. It is also widely used as a waterproofing agent for textiles and a leveling agent for paints.

Magnesium Stearate

This white, non-sandy fine powder is non-toxic, insoluble in water but soluble in hot ethanol, benzene, and turpentine. When heated in organic solvents, it forms a gelatinous substance that decomposes into stearic acid and corresponding magnesium salts upon exposure to strong acids, exhibiting hygroscopic properties.

Magnesium stearate serves as a heat stabilizer, lubricant, anti-adhesive, dispersant, and anti-caking agent for polyvinyl chloride (PVC) plastics, and acts as a flow aid in direct compression. It also functions as a filter aid, clarifier, and bubble agent, as well as a suspending agent and thickener in liquid formulations.

Barium Stearate

Barium stearate is a white, lightweight powder that is insoluble in water but soluble in hot ethanol. It exhibits hygroscopic properties in air and forms a gelatinous substance when heated and cooled in organic solvents. Upon exposure to strong acids, it decomposes into stearic acid and corresponding barium salts. Barium stearate enhances the thermal stability of polyvinyl chloride and polyethylene copolymers, providing excellent lubrication. 

When combined with zinc soaps, epoxides, or cadmium soaps, it demonstrates significant synergistic effects, preventing premature discoloration of barium salts and enabling the production of transparent products. Free from sulfide contamination, it is suitable for transparent films, sheets, and artificial leather, as well as pipes and cable materials. In mechanical applications, it serves as a high-temperature lubricant, while in rubber products, it acts as a heat-resistant release agent.