Knowde Enhanced TDS
Identification & Functionality
- Chemical Name
- Fluids & Lubricants Functions
- CAS No.
- 28473-19-0
- EC No.
- 249-047-0
- Technologies
Features & Benefits
- Labeling Claims
- Fluids & Lubricants Features
- Features
- Low volatility
- Low temperature fluidity
- Lubricity
- Additive solubility
- Seal swell
- High viscosity index
- Deposit control
- Thermal/oxidative stability
- No deposit formation
- High flash point/fire resistance
- Long service life
- Product Highlights
Diesters are low to medium viscosity synthetic base stocks that have two ester groups. Most diesters are made from a dibasic acid combined with monofunctional alcohols, while a polyol diester is made from a synthetic glycol and monofunctional acids.
Diesters are known for outstanding low temperature properties, lubricity and solvency. The polar ester groups provide excellent high temperature stability and low temperature fluidity. When comparing diesters to hydrocarbon oils and other synthetics with the same viscosity, a diester fluid will have a higher flash point, lower volatility and better thermal stability. Diesters improve additive solubility and seal conditioning, while offering natural high viscosity index thats boosts lubrication efficiency. Synthetic esters have a long history of use in aviation jet engine lubricants due to their combination of oxidative stability, low volatility and high viscosity index. Aviation turbine engine bearings demand fluidity at extreme low temperatures and lubrication film strength under high shear and high temperature conditions. Esters have been proven to deliver long life, low deposit formation and reliable lubrication under the most extreme operating conditions.
Applications & Uses
- Applications
- Compatible Base Stocks
- Fluids & Lubricants Type
- Fluids & Lubricants End Use
- Application Areas
- Gears and Chains
- Hydraulics
- Textile
- Compressors
- Greases
- Metalworking
- Turbines
- Applications
- Engine and Driveline
- Compressor lubricants
- Hydraulic fluids
- Grease
- Metalworking fluids
- Gear & Chain oils
- Textile lubricants
- Type I diester lubricants for small private aircraft engines (3 cSt)
- Type II polyol ester lubricants for military and commercial jet engines (3 & 4 cSt)
- Type III polyol ester lubricants for commercial jet engines (5 cSt)
- MIL-PRF-7808L
- SAE-AS5780 for commercial aviation engines
Properties
- Typical Properties
- Composition
| Value | Units | Test Method / Conditions | |
| Biobased Content | 48 | % | — |
| Flash Point | 240 | °C | — |
| High Temperature | No | — | — |
| KV (at 100°C) | 4.7 | cSt | — |
| KV (at 40°C) | 21 | cSt | — |
| Low Temperature | Yes | — | — |
| Pour Point | -55 | °C | — |
| Viscosity Index | 155 | — | — |
| Value | Units | Test Method / Conditions | |
| Chemistry | Diacid | — | — |
Regulatory & Compliance
- Certifications & Compliance
Packaging & Availability
- Country Availability
- Packaging Type
- Regional Availability