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Normally, we change the thermic fluid when it has gone bad, carbonized and / or, oxidised.


Some Indicators of Thermic fluid degradation (Going Bad)-

  • Low flash point,

  • High level of high boilers,

  • Higher viscosity

  • More ash content,

  • Higher acidity

  • High level of insoluble - carbon

Always decarbonise the system while replacing the oil

 & avoid future problems.

Continuous use may

result in thermic

fluid deterioration.

The main causes

of deterioration are:


  • Contamination

  • Oxidation

  • Overheating / Cracking


Use Thermclean for complete cleaning

Degradation generates two types of carbon viz. Polymeric and Amorphous.

Polymeric carbon has metal affinity, and it is very difficult to remove the carbon by standard cleaning process. It requires a high concentration/quantity of penetrant which will severe it’s metal bond and disperse the polymeric carbon.


Amorphous carbon floats in the thermic fluid. It sticks on the polymeric carbon base and creates glow phenomenon. It results in weakening of coil – heat exchanger.

Cleaning differs than

flushing Cleaning

does a complete job.


Always USE Thermclean to,

  • break carbon bond and

  • remove complete carbon while decarbonising the system.


Use Thermclean for complete cleaning


Some photographs of pipeline before cleaning and after cleaning with Thermclean-XL


AYM Syntex (Welspun Group)

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