Aluminium Stearate


Aluminum stearate is a chemical compound used in the PVC industry as a lubricant, Stabilizer, and anti-blocking agent. In PVC manufacturing, aluminum stearate helps to improve the flow properties of PVC during processing, acts as a heat Stabilizer to prevent degradation at high temperatures, and reduces the tendency of PVC surfaces to stick together or adhere to other surfaces. It is one of several additives employed in the PVC industry to achieve desired properties in PVC products.




White to off-white Powder or Flakes

Molecular Weight

Approximately 877.5 g/mol

Melting Point

around 150-160°C (302-320°F)


Insoluble in water, soluble in organic solvents 

Free Fatty Acid Content

below 2%

Metal Content (Aluminum)

around 10-12%

Moisture Content

below 1%