Pentaerythrityl stearate

Pentaerythrityl stearate (CAS 8045-34-9) is a pentaerythritol-based ester of stearic acid used as a lubricant and plasticizer in industrial manufacturing.

Where is Pentaerythrityl stearate used?

• Polymer processing and surface coatings: controlled slip, release and softening
• Plastics compounding: internal and external lubricant that reduces melt viscosity and prevents adhesion to equipment during extrusion and injection molding
• Coatings and sealants: surface slip and substrate release without compromising film integrity
• Metalworking lubricants: boundary lubrication under moderate load
• Adhesive and elastomer compounds: softening agent that adjusts flexibility and processing behavior

Good to know: Purity specifications and ester composition profiles vary by supplier; buyers should confirm hydroxyl value and acid value against application requirements. Store in cool, dry conditions to maintain stability.

Commercial specifications

• Purity specifications and ester composition profiles vary by supplier
• Buyers should confirm hydroxyl value and acid value against application requirements