Zinc palmitostearate

Zinc palmitostearate (CAS 91051-01-3) is a zinc salt of mixed C16–C18 fatty acids; it functions as an internal and external lubricant, plasticizer, and release agent in polymer and rubber processing.

Where is Zinc palmitostearate used?

• PVC processing: internal lubricant and stabilizer co-agent
• Rubber compounding: processing aid and mold release agent that reduces sticking during vulcanization
• Thermoplastic systems such as polyolefins and engineering resins: supports dispersion of fillers and pigments while reducing torque during extrusion
• Metalworking and industrial lubricants: solid lubricant additive in greases and dry-film coatings
• It reduces friction between polymer chains and processing equipment surfaces, improving flow and preventing die buildup during compounding and extrusion.

Commercial specifications

• Technical grade is the standard commercial form, with purity and fatty acid chain distribution specified according to application requirements.
• Bulk supply in bags or supersacks, with particle size specifications for compounding applications.