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Metallic Stearates(Applications): Indispensable Functional Additives in Modern Industry

Metallic Stearates are a class of salt compounds formed by the reaction of stearic acid (a C18 long-chain saturated fatty acid, typically derived from vegetable oils or animal fats) with metallic ions. Owing to their unique physicochemical properties – excellent lubricity, superior stability, efficient dispersibility, and significant anti-caking performance – these compounds have become core functional additives across critical industrial sectors, including plastics, rubber, coatings, personal care, pharmaceuticals, food, and lubricants.

 

 

Functional Properties

 

Property

Effect

Lubricity

Reduces material/internal friction and friction against processing equipment, enhancing flow.

Stability

Improves thermal and long-term stability of materials (especially polymers).

Dispersibility

Ensures uniform dispersion of fillers, pigments, and additives.

Anti-Caking

Prevents agglomeration of powdered substances, maintaining free flow.

Release Performance

Facilitates smooth demolding in molding processes.

Thickening/Thixotropy

Modulates viscosity and rheology of fluid systems.

 

Key Applications 

enlightenedPlastics Industry

Functions: Internal/external lubricant, heat stabilizer (critical for PVC), acid scavenger, processing aid.

Key Metallic Stearates:

  1. Calcium Stearate (PVC heat stabilizer)
  2. Zinc Stearate (lubricant/stabilizer for PE, PP)
  3. Magnesium Stearate (processing aid)

 

enlightenedRubber Industry

Functions: Internal lubricant, release agent, filler dispersant.

Key Metallic Stearates: Zinc Stearate, Calcium Stearate.

 

enlightenedCoatings, Inks & Pigments

Functions: Dispersant, anti-settling agent, thickener (oil-based systems), matting agent.

Key Metallic Stearates: Aluminum Stearate (thickener), Zinc Stearate, Calcium Stearate.

 

enlightenedPharmaceutical Industry

Functions: Tablet/capsule lubricant, release agent.

Key Metallic Stearates: Magnesium Stearate (primary pharmaceutical excipient).

 

enlightenedFood Industry

Functions: Anti-caking agent, processing aid.

Key Metallic Stearates: Calcium Stearate (anti-caking agent).

 

 

 

 

 

 

 

 


Though often unseen, Metallic Stearates are vital to modern industrial processes. They enhance product performance, optimize production, and ensure quality consistency. AsiaPalm delivers high-quality, multi-specification Metallic Stearates and tailored technical solutions to drive your success.

 

Interested in Application Solutions & Technical Specifications?

Contact our sales team for expert support and customized services!

 

 

Creation Time:2025-07-04