Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Chemical Name
- Fluids & Lubricants Functions
- CAS No.
- 68130-55-2
- EC No.
- 268-597-2
- Technologies
- Product Families
Features & Benefits
- Labeling Claims
- Fluids & Lubricants Features
- Features
- High viscosity
- Thermal stability
- Biodegradability
- Lubricity/boundary lubrication
- Low volatility
- High flash point
- High viscosity index
- Thermal and Oxidative stability
- No deposit formation
- Wide temperature operating range
- Product Highlights
Complex esters are polymeric ester chains made from diacids and diols or polyols. As the chain grows, molecular weight and viscosity increase, making it possible to produce complex esters with a wide range of viscometrics and performance characteristics. Different feedstocks are used to modify the basic fluid characteristics such as polarity, lubricity, stability and cost. They are shear stable and most are bio-based and biodegradable even at the high end of the viscosity range. Most regulatory schemes classify complex esters as polymers.
By controlling the viscosity and fluid characteristics, Zschimmer & Schwarz produces complex esters that are tailored for optimal performance. Complex esters provide excellent lubricity and boundary lubrication as base stocks or additives in grease, gear oils and metalworking. Complex esters offer natural high viscosity index thats boosts lubrication efficiency.
Complex esters can also be used to raise the viscosity of a lubricant. Lexolube CG-3000 is a bio-based complex ester designed to thicken vegetable oil based fluids while Lexolube CQ-3000 is most compatible with mineral oil, PAO and polyol ester based formulas. High quality synthetic esters are widely used as compressor base stocks due to their excellent thermal/oxidative stability, low volatility, and wide operating temperature range. They provide clean operation for long life at elevated temperatures. Reciprocating and rotary vane compressors take advantage of the inherent lubricity and solvency of diesters and trimellitates while rotary screw and centrifugal fluids benefit from the extreme oxidative stability of polyol esters. Refrigeration grades (SRL) have optimized miscibility and flow properties with the refrigerant gas at high and low temperatures. Industrial and automotive gear applications demand base stocks that can withstand the stress and shear of high loads. Oven and freezer conveyor chains must function at temperature extremes with no smoke or deposit formation. Synthetic esters with high oxidative and thermal stability provide excellent lubricity, boundary lubrication and viscosity boost, delivering long life and smooth operating performance in both gear and chain applications. Synthetic esters are available in a wide variety of viscosity grades and deliver an excellent combination of oxidative stability, low temperature fluidity, lubricity and high viscosity index in greases formulated with high performance thickeners. Low volatility and a favorable eco-toxicity profile make synthetic esters an excellent choice for greases that are used in outdoor partial loss applications or in environmentally sensitive areas. Hydraulic fluids are essentially incompressible liquids that transmit power from a pump to a motor or actuator through a piping system. During operation, the system operates under pressure and the viscosity of the fluid must be high enough to minimize leakage and protect the pump from wear. Conversely, high viscosity hurts flow properties and efficiency at low temperatures if viscous drag becomes significant. Since hydraulic fluids may operate over a range of temperatures, the pour point and viscosity index are important. The fluid provides lubrication to the pump and valves and helps to prevent corrosion of metal parts. It must also be compatible with elastomeric sealing materials. The fluid must be formulated to guard against oxidation, hydrolysis and deposit formation, and it should not be toxic or harmful if accidentally discharged.
Hydraulic systems are commonly used in both mobile and stationary applications, therefore fluids must be designed to perform over a wide range of temperature and pressure service conditions. Synthetic esters offer shear stable, high viscosity index fluidity for excellent pump efficiency. They are preferred when biodegradability, fire resistance, wide temperature range, or other advanced performance characteristics are required. The International Standards Organization (ISO) classifies fire resistant synthetic ester fluids in the HFDU category, and several LEXOLUBE and LUBRICIT products can be used to achieve a Factory Mutual fire resistance certification. Several Z&S synthetic ester products are on the EU EcoLabel LuSC list and/or the NSF HX-1 list of acceptable components that can be selected to formulate H1 food grade lubricants. Synthetic esters are well suited for use as base stocks and additives in aqueous and straight metalworking fluids due to their polar nature, which enables them to adsorb on metal surfaces, reducing friction and wear in the EHL and boundary lubrication regimes.
Synthetic esters are widely used in both ferrous and non-ferrous cutting, rolling, forming and grinding applications. They can be readily emulsified to form stable synthetic and semi-synthetic fluids, and are useful as additives in straight or soluble oil formulations. Synthetic esters have low VOC and a favorable toxicological profile so they are worker friendly and environmentally responsible. Synthetic esters are used in the textile industry to lubricate and protect both fibers and machinery. Fibers move through textile processing equipment at very high speeds, creating friction and heat that causes wear of stationary parts and degradation of the fibers. A good lubricant will reduce heat, friction and wear on high speed spindles and bearings, allowing the machines to run faster with less down time due to fiber breaks and snags.
Synthetic ester lubricants will not have negative impact on the color, look or feel of clothing, carpet or other textiles. They can be easily removed by washing or baking, leaving no residue that can impact dyeing or post-processing. A textile lubricant should not stain the fiber or form varnish on the machine.
A variety of esters are used in the textile industry to address the many different types of fibers and mechanical operations. Zschimmer & Schwarz has a long history of providing components for both neat esters and spin finish emulsions for the textile industry, and can recommend the appropirate solution for any type of fiber lubricant application.
Applications & Uses
- Markets
- Compatible Base Stocks
- Compatible Substrates & Surfaces
- Fluids & Lubricants Type
- Fluids & Lubricants End Use
- Application Areas
- Compressors
- Hydraulics
- Turbines
- Gears and Chains
- Greases
- Metalworking
- Textile
- Applications
- Grease
- Gear oils
- Metalworking
- Compressor oils
- Thickening
- Metal protection
- Textile
- Oven chain and conveyor drives
- Spur
- Bevel
- Automotive and industrial gears
Properties
- Typical Properties
- Composition
| Value | Units | Test Method / Conditions | |
| Biobased Content | max. 10 | % | — |
| Flash Point | 300 | °C | — |
| High Temperature | Yes | — | — |
| KV (at 100°C) | 96 | cSt | — |
| KV (at 40°C) | 1000 | cSt | — |
| Low Temperature | No | — | — |
| Pour Point | -20 | °C | — |
| Viscosity Index | 185 | — | — |
| Value | Units | Test Method / Conditions | |
| Chemistry | CE | — | — |
Regulatory & Compliance
- Certifications & Compliance
- Chemical Inventories
Packaging & Availability
- Country Availability
- Packaging Type
- Regional Availability