Pentaerythrityl Tetrastearate PETS Pentaerythritol Tetrastearate, Pentaerythritol Stearate CAS 115-83-3

Tree Chem manufactures Pentaerythrityl Tetrastearate CAS 115-83-3 under strict production control to ensure stable quality and consistent physical characteristics. This product offers good compatibility with polymer materials, excellent lubricity, and thermal stability.

Tree Chem cooperates with numerous polymer and additive producers globally, offering stable supply and professional technical support. For purchase or formulation assistance, please contact summer@cntreechem.com.

Specification

Basic Information

Pentaerythritol Tetrastearate (PETS) is one of Tree Chem’s key export-grade specialty additives, known for its versatility across plastics, lubricants, coatings, and personal care applications. Our professional formulation team collaborates daily with global manufacturers, providing tailored technical solutions that enhance processing stability, improve surface finish, and extend product durability. Through years of experience, our PETS formulations have earned broad recognition for their superior thermal stability, lubricity, and consistent performance in demanding production environments. Beyond product supply, Tree Chem offers integrated sourcing and formulation support, helping partners simplify procurement, reduce costs, and accelerate innovation. Whether in engineering plastics, cosmetic formulations, or high-performance lubricants, Tree Chem’s PETS stands as a trusted choice for efficiency, quality, and long-term reliability.

Technical Specification

Applications

Plastics Industry

• Pentaerythritol Tetrastearate (PETS) plays an essential role in the plastics industry as a high-performance internal and external lubricant and mold release agent, particularly in the processing of polycarbonate (PC), acrylonitrile-butadiene-styrene (ABS), polyethylene terephthalate (PET), and polyvinyl chloride (PVC). During plastic molding and extrusion, PETS reduces the melt viscosity of polymers, enhances material flowability, and prevents thermal degradation caused by frictional heat. This significantly improves the dimensional stability and processing efficiency of plastic products.
• In PVC processing, PETS demonstrates excellent thermal stability and color retention performance. By absorbing and neutralizing hydrogen chloride (HCl) generated during thermal decomposition, it effectively prevents product yellowing and deterioration. PETS also acts synergistically with calcium stearate and zinc stearate to improve both thermal and dynamic stability, ensuring the uniformity of melt flow and enhancing surface gloss.
• For engineering plastics such as PC and PA, PETS exhibits strong lubricating and mold release properties even under high temperature and pressure conditions. It forms a uniform lubrication film between the polymer and the mold surface, preventing adhesion, reducing demolding force, and improving mold service life. This makes PETS a critical additive in producing automotive parts, electronic components, and optical materials requiring high dimensional precision and superior surface quality.

Rubber Industry

• In the rubber field, Pentaerythritol Tetrastearate functions as an internal lubricant, dispersant, and processing stabilizer. During rubber mixing and compounding, PETS reduces internal friction, allowing fillers like carbon black and silica to disperse evenly. This enhances the mechanical uniformity and elasticity of the final product while improving the extrusion smoothness of rubber materials.
• When applied to synthetic rubber formulations such as EPDM, SBR, and NBR, PETS serves as a processing aid that minimizes sticking to rolls and molds, shortens demolding time, and increases production efficiency. It also enhances the surface quality of molded products, giving rubber parts a smoother and glossier finish. PETS can even improve the compatibility of polymer blends, allowing for the production of high-performance elastomers with optimized flexibility and durability.

Lubricant and Grease Industry

• Pentaerythritol Tetrastearate is highly valued as a lubricant additive due to its outstanding thermal stability, lubricity, and anti-wear performance. When incorporated into synthetic lubricants, PETS forms a durable lubricating film on metal surfaces, effectively reducing friction, wear, and energy consumption under high temperature and pressure. Its low volatility and oxidation resistance make it suitable for long-life lubricants used in automotive engines, industrial machinery, and aerospace applications.
• PETS also acts as a viscosity modifier and thickener in grease formulations, improving structural stability and consistency at elevated temperatures. In addition, PETS enhances the oxidation stability of base oils, preventing degradation and extending the lubricant’s service life. This performance profile makes PETS an ideal additive for high-end lubricants designed for demanding operational conditions.

Coatings and Ink Industry

• In coatings and printing inks, Pentaerythritol Tetrastearate is used as a dispersant, flow modifier, and anti-settling agent. It improves pigment dispersion during formulation, ensuring uniform color distribution and preventing settling during long-term storage. PETS also enhances the gloss and smoothness of finished coatings by promoting even film formation.
• In powder coatings, PETS serves as a flow-promoting and anti-caking additive, helping powder particles melt and flow uniformly during curing. This results in smoother coating surfaces and improved gloss while reducing defects such as pinholes or orange peel. In solvent-based and water-based coatings, PETS improves flow leveling and enhances film toughness, making it especially suitable for applications in industrial machinery, home appliances, and automotive coatings that demand both mechanical and aesthetic performance.

Cosmetic and Personal Care Industry

• Pentaerythritol Tetrastearate has found growing use in the personal care sector as an emollient, texture enhancer, and viscosity stabilizer. It provides a smooth, silky skin feel and improves the spreadability of creams and lotions. In addition, it stabilizes emulsions by preventing phase separation in formulations containing high oil content, ensuring consistent texture over shelf life.
• PETS is also widely used in products such as pressed powders, lipsticks, and hair conditioners. It enhances the adhesion and uniformity of powder cosmetics, giving them a fine, smooth finish, while also improving gloss and long-lasting wear. Due to its mild nature and biodegradability, PETS aligns with clean beauty trends and is suitable for sustainable cosmetic formulations focused on eco-friendly performance and skin compatibility.

New and Emerging Application Fields

• In addition to traditional uses, Pentaerythritol Tetrastearate is being increasingly explored in biodegradable plastics, composite materials, and green chemistry applications. It improves the processability and surface finish of biodegradable polymers such as PLA and PBS. In composite materials, PETS enhances interfacial adhesion between matrix and fillers, improving strength and durability. Furthermore, PETS shows potential as a biolubricant and eco-friendly plastic additive, reflecting the industry’s transition toward sustainable and high-performance material solutions.

Storage & Handling

• Store in a dry, well-ventilated place, away from heat and moisture.
• Keep containers tightly closed to prevent contamination.
• Avoid exposure to direct sunlight and strong oxidizing agents.
• Handle with clean, dry equipment.
• Ensure grounding and avoid static accumulation during transfer.

Usage Notice

• Use in accordance with recommended temperature ranges for best processing results.
• Ensure uniform dispersion in polymer matrices.
• Dispose of unused material according to local environmental regulations.
• PVC Processing Aid Formulation: Pentaerythritol Tetrastearate 1%, Calcium Stearate 0.5%, Zinc Stearate 0.5%, Epoxidized Soybean Oil 2%. PETS acts as a lubricant and thermal stabilizer, improving flowability and preventing decomposition during extrusion.
• Engineering Plastic Modifier: Pentaerythritol Tetrastearate 0.8%, Polycarbonate Resin 98.5%, Antioxidant 0.7%. PETS reduces melt viscosity and enhances mold release during high-temperature molding.
• Synthetic Lubricant Base Oil Blend: Pentaerythritol Tetrastearate 2%, PAO Base Oil 97%, Additives 1%. PETS improves film strength, reduces wear, and enhances the thermal stability of lubricants.
• Powder Coating Formula: Pentaerythritol Tetrastearate 1.5%, Polyester Resin 92%, Pigments 5%, Curing Agent 1.5%. PETS acts as a flow modifier and anti-caking agent, improving coating smoothness and gloss.
• Cosmetic Cream Formula: Pentaerythritol Tetrastearate 1%, Stearic Acid 4%, Glycerin 3%, Water 90%, Emulsifier 2%. PETS enhances product texture, providing a smooth, non-greasy feel.
• Rubber Compound Additive: Pentaerythritol Tetrastearate 1%, Natural Rubber 94%, Carbon Black 4%, Zinc Oxide 1%. PETS improves filler dispersion and reduces internal friction, enhancing surface smoothness and processability.
• Biodegradable Plastic Blend: Pentaerythritol Tetrastearate 0.7%, Polylactic Acid (PLA) 98%, Antioxidant 1.3%. PETS acts as a processing lubricant and stabilizer, improving melt uniformity and reducing brittleness in final products.
• High-Temperature Grease Formula: Pentaerythritol Tetrastearate 2%, Synthetic Base Oil 94%, Thickener 3%, Additives 1%. PETS enhances high-temperature stability and provides long-lasting lubrication under extreme conditions.
• Ink Formulation: Pentaerythritol Tetrastearate 0.5%, Pigments 12%, Resin 85%, Solvent 2.5%. PETS functions as a dispersing agent and improves ink fluidity and gloss.
• Hair Conditioner Formula: Pentaerythritol Tetrastearate 0.8%, Cetearyl Alcohol 3%, Silicone Oil 2%, Water 93.2%, Preservatives 1%. PETS enhances smoothness, providing a soft touch and improving conditioning performance.

Packaging

• 25kg bags
• Custom packaging available upon customer request