Speciality Chemicals

Pentaerythrityl Tetrastearate

  • CAS No.115-83-3
  • GradeIndustrial / Pharmaceutical
  • Availability● In Stock

High-purity Pentaerythrityl Tetrastearate (PETS) designed for plastic and rubber processing. Delivers exceptional thermal stability, lubrication, and mold release performance.

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Product Technical Details

Product Overview

Pentaerythrityl Tetrastearate, commonly known as PETS, is a high-performance specialty chemical ester derived from pentaerythritol and stearic acid. This compound is engineered to serve as a multifunctional additive in the polymer processing industry. With a molecular structure that promotes excellent thermal resilience, it stands out as a critical component for manufacturers seeking to enhance the processing efficiency of thermoplastics and rubber compounds. Our grade ensures consistent quality suitable for demanding industrial applications where reliability and performance are paramount.

Key Chemical Properties

The unique molecular architecture of Pentaerythrityl Tetrastearate provides a balanced combination of internal and external lubrication. Its high melting point and low volatility make it particularly effective in high-temperature processing environments. The chemical stability ensures that the material does not degrade easily during extrusion or molding, thereby maintaining the integrity of the final product. Furthermore, its compatibility with various polymer matrices allows for seamless integration into existing formulations without compromising mechanical properties.

Performance Advantages

  • Superior thermal stability under high-temperature processing conditions.
  • Excellent mold release properties that reduce cycle times.
  • Effective dispersant for pigments and fillers in composite materials.
  • Low volatility minimizes fogging and plate-out issues.
  • Enhances flow characteristics during injection molding and extrusion.

Technical Specifications

ParameterSpecification
AppearanceWhite flakes or powder
Melting Range55-65℃
Iodine Value≤2.5 g I2/100g
Acid Value≤6.0 mg KOH/g
Saponification Value180-198 mg KOH/g

Industrial Applications

This specialty chemical is extensively utilized in the rubber and plastic industries as a processing aid. It functions primarily as a lubricant and dispersant, facilitating smoother production workflows. In polyolefin manufacturing, it improves surface finish and reduces friction. For engineering plastics, it aids in the uniform distribution of additives. The compound is especially valuable in applications requiring both thermal stability and excellent release properties, such as automotive components, electrical housings, and consumer goods. Its versatility makes it a preferred choice for formulators aiming to optimize production efficiency.

Storage and Handling

To maintain optimal quality, Pentaerythrityl Tetrastearate should be stored in a cool, dry environment away from direct sunlight and moisture. The standard packaging consists of 25kg drums, ensuring safe transport and handling. When used according to recommended guidelines, this material presents minimal handling risks. We recommend consulting the safety data sheet for detailed information on personal protective equipment and emergency measures. Proper storage ensures the product retains its physical characteristics and performance capabilities over extended periods.