Heat conductive coating series
CP PHENOLICS B.V. offers a phenol coating series specially developed to protect heat exchangers. These coatings are heat conductive and can withstand big temperature fluctuations between -120°C and 220°C. The coating is extreme resistant to strong alkaline to acid media. Most important features are:
- Corrosion protection
- Erosion protection
- Anti fouling
- Flow improvement
Depending on the type of heat exchanger we can apply the coating by:
- Flooding technique
- Tube lining technique
- Immersion technique
- Spraying technique
Coating of heat exchangers
Heat cured phenol epoxy coating:
A heat exchanger is a very important part of the chain in a process, it is therefore essential to ensure reliability and optimum performance; To achieve this, a good conservation is required. Years of experience in the field learns us that our CP PHENOLICS® coating (phenolic epoxy coating) has outstanding characteristics in this matter.
CP PHENOLICS® heat cured coating achieves great value to customers due to high chemical resistance to aggressive media even in high concentration and high temperatures up to 220°C.
This CP PHENOLICS® coating prevents corrosion , fouling and incrustation in the tubes, therefor operational costs are reduced. The heat conductivity remains constant with the result of better efficiency and allows a simple cleaning process.
Benefits of a coated shell tube:
Treatment of the shell tube with CP PHENOLICS® coating will lead to:
- Low resistance coefficient (max. flow through the tubes)
- Optimal heat transfer
- High operational reliability
- Extended lifetime of the heat exchanger
The coating is a thermosetting coating of minimum 3 layers. Every layer gets an oven treatment on a different time and different temperature schedule. During the final polymerization session the coating layers cross link with each other on molecular level. Derived from this the coating offers high-end corrosion protection against all sorts of aggressive substances.
The aforementioned cases ensure that investment and maintenance costs will be reduced. We therefore recommend not only to provide a protective coating on new heat exchangers but also those heat exchangers who are in actual use.
Example case at Project BASF:
Entry temperature of condensate: 98 – 103 °C, cooling water speed: 0.3 m/sec.
Due to the absence of protective coating, there was a reduced heat transfer of more than 60% in 36 months!