Pentaerythrityl tetrastearate

Pentaerythrityl tetrastearate (CAS 115-83-3), abbreviated PETS, is a waxy ester derived from pentaerythritol and stearic acid. Also marketed as Pentaerythritol tetrastearate.

Where is Pentaerythrityl tetrastearate used?

• Plastics processing: reduces friction between polymer chains
• Extrusion and injection molding: improves throughput and surface finish on engineering thermoplastics such as PVC, ABS, and polyamides
• High-temperature grease: incorporated by lubricant formulators
• Metalworking compounds: ester structure provides film stability under load
• Coatings and adhesives: modifies rheology and improves substrate slip without compromising adhesion
• Personal care: structuring agent and emollient in lipsticks, creams, and hair care products
• It also functions as an internal and external lubricant, mold release agent, and processing aid.

Commercial specifications

• Cosmetic-grade material meets purity requirements for personal care applications
• Packaging typically ranges from 25 kg bags to bulk quantities