Maxothermie®660
Maxothermie®-660 is a high-performance synthetic heat transfer fluid engineered for non-pressurized and low-pressure indirect heating systems operating at very high temperatures. It is designed for reliable operation in closed-loop heating systems across a wide liquid-phase temperature range of –7°C to 350°C, with exceptional thermal stability and ultra-low vapor pressure.
Operating Temperature
| Minimum Startup Temp (300 cSt) | Maximum Operating Temp (Bulk) |
|---|---|
| 20°F / –7°C | 662°F / 350°C |
Key Features & Benefits
Wide operating temperature range: –7°C to 350°C (bulk), up to 375–380°C film temperature
Exceptional thermal stability minimizes degradation at extreme temperatures
Ultra-low vapor pressure enables safe non-pressurized or low-pressure system operation
High resistance to oxidation extends fluid and equipment service life
High boiling point reduces volatility and leakage risk
High auto-ignition temperature (>450°C) enhances safety in high-temperature zones
Low pour point (–25°C) supports cold start-up and ease of handling
Low acidity (≤0.01 mg KOH/g) helps maintain system cleanliness
Excellent heat transfer efficiency improves process control and energy utilization
Long service life reduces downtime and replacement costs
Clean operation with minimal sludge, fouling, or carbon formation
Typical Applications
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Chemical and petrochemical processing
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Polymer, plastic, and resin manufacturing
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Pharmaceutical reactors, dryers, and synthesis units
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Food and specialty chemical processing
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Heat transfer systems in reactors and distillation units
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Industrial ovens, dryers, and calenders
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Continuous high-temperature processing lines
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Asphalt, bitumen, and specialty material heating
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Heavy-duty thermal oil heaters and heat exchangers
Technical Advantages
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Engineered specifically for non-pressurized / low-pressure heating systems
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Suitable for continuous, high-temperature industrial operation
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Maintains stable viscosity and heat transfer characteristics over extended periods
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Low vapor pressure ensures safe liquid-phase heat transfer
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Reduced oxidation and acidity improve system reliability and cleanliness
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Compatible with standard thermal fluid system materials and components
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Minimizes fouling, carbon buildup, and maintenance frequency
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Proven performance across diverse industrial operating conditions