Zinc Stearate

Lead stearate is a lead soap that is insoluble in water & soluble in hot alcohol.

Lead stearate is highly recommended as internal lubricant & stabilizer in PVC formulation. As drier in varnish; lacquer & paints. In extreme pressure lubricants. Stabilizer for vinyl polymers (with D.B.L.S. & T.B.L.S.). As corrosion inhibitor for petroleum. As a component in greases; waxes and paints. In PVC extruded; calendered and molded articles. In cable compounds etc.

Chmical Formula: (C17H35COO)2Pb
Molecular Weight: 774
CAS Registry No.: 7428-48-0, 1072-35-1:

Zinc stearate is insoluble in polar solvents, but well soluble in aromatic compounds and chlorinated hydrocarbons when heated. Zinc Stearate is a zinc soap that repels water, insoluble in alcohol, ether, soluble in benzene. It is the most powerful mold release agent among all metal soaps. It contains no electrolyte and has hydrophobic effect. Its main application areas are the plastics and rubber industry where they are used as releasing agents and lubricants which can be easily incorporated.

Zinc stearate application
As a synergic stabilizer for Ba/Cd and Pb stabilizer systems.
As a gloss imparting agent in paint industry.
As a metal release agent in rubber, polyurethane and polyester processing system.