Pentaerythritol Tetraoleate PETO Tetraoleate Ester CAS 19321-40-5

Tree Chem manufactures Pentaerythritol Tetraoleate CAS 19321-40-5 with strict process control and advanced esterification technology. This product exhibits outstanding viscosity properties and oxidative stability, making it suitable for high-performance lubricants and cosmetic formulations.

With strong expertise in ester-based materials, Tree Chem has long-term cooperation with multiple lubricant and cosmetic producers worldwide. For consultation and supply information, please contact summer@cntreechem.com.

Specification

Basic Information

Tree Chem has extensive experience exporting Pentaerythritol Tetraoleate (PETO) to global lubricant and industrial additive markets. As a long-term supplier, we work closely with international manufacturers to support high-performance formulation design in synthetic lubricants, metalworking fluids, greases, and polymer processing. Our technical team conducts continuous formulation testing and property evaluation to ensure excellent thermal stability, film strength, and low-temperature fluidity in every application.

Through years of cooperation, Tree Chem’s PETO has been widely recognized for its consistent quality and compatibility with various additive systems. Our products are used in industrial lubricants, gear oils, compressor oils, and hydraulic systems, where they deliver high viscosity index, strong lubricity, and outstanding oxidative resistance.

Beyond manufacturing and supply, Tree Chem provides one-stop sourcing and formulation support for lubricant blenders and chemical processors, offering flexible logistics and stable long-term supply. Combining deep technical knowledge with practical industry experience, we help customers improve energy efficiency, extend equipment life, and optimize overall performance across different sectors.

Technical Specification

Applications

Industrial Lubricants

Pentaerythritol Tetraoleate (PETO) is a high-performance polyol ester used as a base oil or co-base in industrial lubricants where a high viscosity index, low volatility, and excellent lubricity are required. In circulating and bearing oils, PETO forms durable boundary films that reduce friction and wear while maintaining stable viscosity across a wide temperature range. In hydraulic systems, PETO contributes shear stability and good air release, helping to minimize cavitation and ensure precise response under high loads. In compressor and vacuum pump oils, PETO’s low vapor pressure and strong oiliness improve sealing and reduce carryover, supporting clean operation and extended drain intervals.

Metalworking Fluids

PETO is widely applied as a polar lubricity improver in metalworking formulations, including neat cutting oils, semi-synthetic emulsions, and water-extendable fluids. In machining of stainless steel, nickel alloys, and titanium, PETO adsorbs onto metal surfaces to form a persistent lubricating film that lowers cutting forces and tool wear while improving surface finish. In cold forming and stamping, PETO enhances extreme-pressure performance when combined with sulfurized or phosphorized additives, providing galling resistance and reducing die pickup. In rolling oils for aluminum and steel, PETO improves film strength and cleanliness, aiding in gauge control and minimizing roll staining.

Greases

As a grease base-oil component, PETO provides high film strength, low starting torque, and excellent mechanical stability with lithium complex, calcium sulfonate, or polyurea thickeners. In high-temperature or high-speed bearings, PETO’s high viscosity index and oxidative stability help maintain consistent consistency and low noise, while its polarity improves additive solubility and rust protection. For food-adjacent or low-odor environments (where regulations allow), PETO can be tuned with antioxidant packages to deliver long service life and reduced oil bleed.

Automotive and Industrial Gears

In industrial gear oils and automotive final drives, PETO is used as a co-base to boost load-carrying capacity and scuffing resistance, particularly in worm and hypoid sets where sliding contact dominates. PETO improves EP additive response, enhances micropitting protection by reinforcing surface films, and supports thermal stability for extended oil life. In heavily loaded gearboxes operating at elevated temperatures, PETO reduces power loss and helps retain seal compatibility when balanced with appropriate seal-swell agents.

Molding, Release, and Anti-wear Additives

PETO functions as a mold-release and slip additive for thermoplastics and elastomer processing, lowering die-wall friction and reducing buildup on molds and calender rolls. In chain and conveyor oils for thermoforming and glass plants, PETO provides clean lubricity with low carbon residue, enabling reduced smoke and improved cleanliness. In light-duty forming of non-ferrous alloys, PETO serves as a stand-alone boundary lubricant or as a carrier for solid lubricants to deliver consistent part quality.

Polymer and Elastomer Compounding

PETO can act as a secondary plasticizer and processing aid in PVC, nitrile rubber, and certain engineering polymers, where it improves melt flow, reduces internal friction, and imparts low-temperature flexibility. Its polarity aids the dispersion of fillers and pigments, contributing to uniform mechanical properties and smoother surfaces. In flexible PVC cable and film compounds, PETO helps reduce plastisol viscosity and enhances fusion, supporting faster line speeds and glossy finishes.

Textile, Leather, and Fiber Finishing

In textile finishes and fiber lubricants, PETO provides durable lubricity and antistatic moderation, improving yarn running, lowering filament breakage, and imparting a soft, full hand. In leather fatliquoring and finishing oils, PETO improves flexibility and suppleness while maintaining low odor and good oxidative stability, supporting uniform dyeing and long-lasting feel.

Sustainability and Formulation Engineering

PETO, derived from fatty acids and polyols, supports the design of lower-volatility, high-VI ester systems that can reduce energy consumption through lower friction and extended drain intervals. Its polarity enables efficient additive solvation and multi-functional blends, allowing formulators to hit performance targets—anti-wear, EP response, cleanliness, and seal compatibility—while optimizing treat rates and simplifying additive packages.

Storage & Handling

• Store in tightly sealed containers to prevent contamination.
• Keep away from heat sources and direct sunlight.
• Avoid contact with strong oxidizers and acids.
• Ensure equipment and containers remain dry and clean.
• Use proper grounding during transfer to prevent static discharge.

Usage Notice

• Handle with clean, dry equipment to avoid moisture contamination.
• Use within the recommended temperature range to maintain viscosity stability.
• Dispose of or recycle product according to local environmental regulations.
• Neat cutting oil for difficult alloys: PETO 35%, mineral base oil 55%, sulfurized EP 6%, phosphorus antiwear 2%, antioxidant 1%, defoamer 0.1%, PETO provides strong boundary lubrication that lowers cutting forces and reduces tool wear while improving surface finish.
• Semi-synthetic machining fluid concentrate: PETO 12%, synthetic ester 8%, nonionic emulsifier 10%, anionic emulsifier 6%, corrosion inhibitor 4%, biocide 1%, water balance in use, PETO boosts lubricity in the emulsion and enhances EP response for cleaner machining and longer sump life.
• Aluminum rolling oil: PETO 25%, hydrotreated naphthenic oil 65%, polar friction modifier 5%, antioxidant 2%, anti-stain additive 1%, PETO provides film strength and cleanliness for gauge control and low roll staining.
• Hydraulic oil ISO VG 46: PETO 30%, Group II mineral oil 65%, zinc dialkyldithiophosphate 0.8%, ashless antioxidant 0.7%, antifoam 50 ppm, PETO raises viscosity index and shear stability while improving lubricity and reducing wear.
• Compressor oil for rotary screw: PETO 60%, synthetic ester co-base 30%, antioxidant 1.2%, anti-rust 0.3%, antifoam 0.05%, PETO delivers low volatility and strong sealing with extended drain intervals and clean operation.
• High-temperature chain oil: PETO 70%, diester 20%, antioxidant 1.5%, antiwear 0.8%, tackifier 0.5%, PETO provides thermal stability and low coke formation for clean chains at elevated temperatures.
• Lithium complex grease NLGI 2: PETO 20%, PAO 40%, lithium complex thickener 12%, calcium sulfonate booster 3%, ZDDP 1%, antioxidant 1%, rest base oil, PETO enhances film strength and mechanical stability for long life in high-speed bearings.
• Polyurea motor bearing grease: PETO 30%, mineral oil 50%, polyurea thickener 10%, antioxidant 1.5%, anti-rust 0.3%, PETO reduces noise and starting torque while improving high-temperature cleanliness.
• Industrial gear oil ISO VG 150: PETO 25%, Group I base oil 65%, sulfur-phosphorus EP 3%, anti-foam 0.05%, rust inhibitor 0.2%, antioxidant 1%, PETO improves scuffing resistance and micropitting control under high sliding conditions.
• Worm gear oil: PETO 40%, bright stock 45%, fatty friction modifier 5%, antioxidant 1%, tackifier 0.5%, PETO increases efficiency in worm gears by lowering friction and improving thermal stability.
• Cold forming oil: PETO 30%, chlorinated paraffin-free EP package 8%, fatty EP booster 5%, mineral oil 55%, antioxidant 1%, PETO supplies polar lubricity to prevent galling and die pickup while improving part finish.
• PVC cable compound: PVC resin 100 phr, primary plasticizer 28 phr, PETO 3 phr, Ca-Zn stabilizer 3 phr, processing aid 1 phr, PETO acts as a secondary plasticizer and processing aid that improves fusion, melt flow, and low-temperature flexibility.
• Rubber processing aid for NBR: NBR 100 phr, carbon black 50 phr, process oil 5 phr, PETO 3 phr, sulfur and accelerators q.s., PETO lowers compound viscosity and improves filler dispersion for better mechanical uniformity.
• Textile coning oil: PETO 20%, white oil 75%, antioxidant 0.5%, antistatic 0.3%, PETO provides durable lubricity and reduces yarn breaks with a soft hand feel.
• Mold release for thermoplastics: PETO 15%, silicone oil 3%, white mineral oil 80%, antioxidant 0.3%, PETO reduces die-wall friction and buildup to achieve cleaner surfaces and faster demolding.
• Vacuum pump oil: PETO 50%, synthetic ester 45%, antioxidant 1%, anti-rust 0.3%, PETO ensures low vapor pressure, tight sealing, and reduced carryover for stable vacuum performance.

Packaging

• 180kg steel drum
• 850kg IBC tote
• Custom packaging available upon customer request