Number:
GP25, GP35, GP40, GP50
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- Product Description
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| Product Overview
The ester‑based PAO series is a fully synthetic lubricant base oil with a unique molecular structure: an α‑olefin copolymer containing ester groups. It combines the properties of both Group IV and Group V base oils, delivering high performance. By integrating the polarity and functionality of esters into a single macromolecule alongside polyalphaolefins, ester‑based PAOs exhibit numerous distinctive characteristics, including excellent additive solubility. They significantly reduce friction, minimize wear, inhibit foam formation, and control the deposition of sludge and other contaminants. Across a broader temperature range, ester‑based PAOs can form robust lubricating films on a wider variety of material surfaces, providing longer-lasting lubrication and superior performance, thereby extending equipment service life.
| Characteristics of Ester-Based PAO
It easily enhances lubricant performance, enabling formulators to achieve greater flexibility in balancing additive packages and improving boundary lubrication to increase oil‑film thickness.
- Reduce friction and wear
- Excellent low-temperature performance
- Improve shear stability
- Extremely high thermal oxidation stability
- Provides additive solubility.
- Enhance the balance of additives
- Higher viscosity index
- Compatibility of elastic seals in balance
- Excellent lubricity and resistance to micropitting
| Scope of Application
- Industrial lubricant
- Automotive lubricant
- Gear oil
- Food-grade lubricant
- Engine oil
- Transmission fluid
- Compressor oil
- Metalworking fluid
- High-temperature chain oil
- Steel cable oil, etc.
- Hydraulic oil
- Lubricating grease
| Combustion cleanliness, low volatility
Ester‑based PAO series, when burned or evaporated under high‑temperature conditions, do not produce smoke, hazardous gases, or carbon residues; therefore, they can be formulated into low‑smoke, environmentally friendly two‑stroke engine oils or industrial gear oils. When used as a base oil, ester‑based PAO exhibits neutral to slightly swelling behavior toward common sealing materials. Moreover, when blended with PAO or Group III base oils, it offers the advantage of eliminating the need to add ester‑swelling additives.
Project GP25 GP35 GP40 GP50 Appearance Colorless to pale yellow transparent liquid Colorless to pale yellow transparent liquid Colorless to pale yellow transparent liquid Colorless to pale yellow transparent liquid Kinematic viscosity (40°C, mm²/s) 224.52 331.8 423.6 551.4 Kinematic viscosity (100°C, mm²/s) 25.69 35.5 42.04 49.89 Viscosity Index (VI) 145 153 151 149 Acid value mgKOH/g 0.063 0.05 0.08 0.16 Pour point (°C) -30 -40 -34 -32 Flash Point (Open Cup, °C) 260 270 272 278 NOACK Volatility at 250°C/1 hr, % w/w 1.8 1.1 2.1 2.05 Density (20°C, kg/m³) 0.96 0.96 0.93 0.95
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