Paridhi Polychem
Metallic Soap

Zinc Stearate

Lubricant & Release

Versatile metallic soap used as an internal/external lubricant, mould release agent and pigment dispersant.

Typical Properties
Appearance
Fine white powder
Chemical Name
Zinc Stearate
CAS No.
557-05-1
Molecular Formula
Zn(C18H35O2)2
Zinc Content
Approx. 10–11%

Zinc Stearate is a zinc salt of stearic acid, widely used across the plastics and rubber industry as a multifunctional lubricant. It reduces friction between polymer melt and processing equipment, aids mould release, and improves the dispersion of pigments and fillers through the matrix.

It is also valued for its water-repellent and anti-tack properties, making it useful as a release and separating agent well beyond plastics processing.

Key Benefits

  • Effective internal and external lubrication
  • Improves mould release and reduces sticking
  • Aids pigment and filler dispersion
  • Imparts water repellency
  • Good compatibility across polyolefins, PVC and rubber

Applications

PVC compoundsRubber compoundingMasterbatch and pigment dispersionMould release applicationsPowder coatings