Due to the ever-increasing development of new types of production processes, materials and service lives, industry is constantly placing new demands on lubricants. It is not uncommon for these applications to present the lubricant with extreme conditions in terms of temperature, environment (dusty, aggressive chemicals, etc.) and physical stress.
Accordingly, setral® offers a new innovative PFPE lubricant generation (SYN-setral-SINT series) that meets these demands and is available in different variants. In contrast to conventional PFPE products, the new grease generation is a more cost-effective hybrid solution, especially for the temperature range between +150°C to +200°C. However, conventional PFPE products are unbeaten in the high-temperature range above 200°C.
Initial situation
PFPE properties
| Advantage of PFPE greases | Disadvantage of PFPE greases |
|---|---|
| excellent VT behaviour | high price |
| excellent low temperature behaviour | absolutely no miscibility with other oil types |
| superb thermal stability, i.e. lowest evaporation losses | no solubility of conventional additives |
| extreme oxidation stability | |
| high resistance to chemicals, acids, alkalis, etc. | |
| Compatibility with paint and sealing materials | |
| no flash point | |
| high resistance to radiation | |
| high vacuum resistance |
Evaporation test at °C
Advantages of SINTs
| Compared to conventional PFPE greases | Compared to lubricants with other base oils |
|---|---|
| Miscible with many non-PFPE based lubricants/corrosion -protection -films | designed for continuous use in the high temperature range (+150°C to +220°C) |
| better corrosion protection | longer re-lubrication intervals |
| better price-performance ratio | higher dropping point |
| Availability of non-fluorinated additives | better resistance to chemicals |
Successfully used in...
Branch: Plastics industry for large plastic parts
Lubrication point: Bearing
Challenges:
Branch: Plastic industry (BOPP/BOPET)
Lubrication point: Bearing
Challenges:
Branch: Food/confectionery industry
Lubrication point: Mechanical seal with bearing
Challenges:
Branch: Engineering, Foundry, Precision machining, Electrical engineering and machine tool building
Lubrication point: Bearings in large wagons
Challenges:
Branch: Construction industry
Lubrication point: Bearing in the transport system of the tunnel kiln
Challenges:
initial situation:
Conclusion:
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