FHTFHI

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Hi-temp calibration bath fluid

This high temperature fluid offers industry a non-toxic, versatile bath fluid that has proven to be cost effective and thermally stable at temperatures up to +315°C. This fluid has demonstrated excellent performance over a wide range of temperature without compromising economics or system integrity. Unlike the less stable mineral oil based fluid, our high temperature fluid provides the user with the confidence and reliability without the premium price of other fluids. Recommended temperature range +60 to +250°C.

Benefits and features
- Low viscosity
- Improves bath uniformity and stability
- Enhanced heat-up and cool down rates
- Lower cost than glycol and silicone oil fluids
- Safe and non-toxic
- Convenient 18L (5 gallon) container

Notes
- Not for long term (more than a few hours) continuous use above 100°C because excessive oxidation will occur.
- As with most high temperature fluids, a fume hood is recommended for operating temperatures above 150°C.
- Should only be used with the following plastics; ABS, Epoxy, Acetal, PTFE, Viton, Kalrez, Chemraz, Fiberglass, Graphites, Fluroelastimers.
- For other plastic types contact Techne for specific recommendations.

Technical Information

Appearance Clear, Light brown, oily liquid
Boiling point Greater than 330°C or 626°F
Composition Synthetic organic hydrocarbon based liquid
Fire point 210°C or 410°F
Flash point 180°C or 356°F
Auto ignition temp. 330°C or 626°F
Specific heat 0.50 Btu (lb) (°F) @ 50°C (122°F)
Viscosity 12cP @ 50°C
Min. pumpability limit 0°C or 32°F
Odour Bland
Volumetric Expansion 0°C to 300°C 30.5
Thermal conductivity @ 20°C or 68°F: 0.135 W per m.K (0.078 Btu per ft. hr. °F)
Recommended use range 60°C to 250°C (122°F to 482°F)
Shelf life (sealed) Several years
Shelf life (once opened) One year
Warning Like many heat transfer fluids, may ignite if exposed to hot surfaces, sparks, flames


Ordering Information

Product Code Description
FHTFHI High Temperature Bath Fluid 18 litre container

NOTE
There is no absolute number of times Techne oils can be heated and cooled but 2 things must be considered.
1. If the bath cycles fluid between ambient and maximum recommended temperature, then over time the fluid may degrade. The amount of time this takes can vary from bath to bath. So if the user identifies changes in colour, viscosity and temperature efficiency to the fluid this indicates the fluid is ready to be changed.
2. If the fluid is being cooled to sub-zero temperatures, moisture from the atmosphere can condense into the fluid and crystalize when the fluid is being cooled down. The customer will see the fluid turn a slightly milky white color due to ice crystals forming.


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