1. Introduction
Thermoguard

2. CONTENTS Introduction Thermoguard Corrosion Coatings Precoat Post coat
Spraying
Dipping
Tests
Thermoguard advantages
Conclusion

3. THERMOGUARD Corrosion protection coating for HVAC equipment Coils
Cabinets
World wide partner network

4. CORROSION
Marine
Industry
Urban
Rural

5. Marine environment
Salts
Humidity
Wind

6. Industry Carbon monoxides Carbon dioxides Hydrocarbons Sulfur dioxide
Nitrogen oxides

7. Urban Carbon monoxides Carbon dioxides Hydrocarbons Sulfur dioxides
Nitrogen oxides

8. Rural
Ammonia
Indoor Pollution

9. Aluminum oxidation Chemical corrosion due to the environment
Aluminum oxide
Aluminum

10. Corrosion due to pollution from environment

11. Galvanic corrosion aluminum Moisture with an electrolyte
Me  Men+ + ne
copper

12. Galvanic corrosion

13. Corrosion in the field

14. Result of Corrosion Shorter lifetime of coil (and Machine)
Increased maintenance requirement
Increased risk for leakages
Corrosion is the main cause of deterioration of heat exchanging coils
Coil performance can decrease dramatically
Higher energy consumption

15. Options to prevent coil corrosion
Different material
Copper-Copper
Stainless steel
all aluminum
Organic coating
Precoat
Postcoat

16. Copper after 1 year in a marine environment

17. Copper fins after 3 yrs in an industrial environm

18. Heat exchanger coating
Seal the metals from the environment but keep count with:
Heat conductivity Flexibility
Layer thickness to UV resistance
maintain airflow Chemical resistance
Adhesion to aluminum

19. Precoat Application before production process Thin layer
Smooth finishing
Poor UV resistance
Layer between aluminum & copper
Increase thermal resistance by up to 5%
Increase pressure drop by up to 10%
Cutting edges untreated
filiform corrosion
Inpitting corrosion

20. moisture, pollution, salts: elektrolyt
Heat transfer
moisture, pollution, salts: elektrolyt
precoated aluminium
thermal resistance
copper tube
galvanic corrosion

21. Filiform corrosion

22. Inpitting

23. Thermoguard Finguard Aluminum pigmentation for heat conductivity
100 % penetration due to high air volumes
UV resistance: excellent
Flexible
Excellent adhesion
Thin layer to prevent pressure drop
Filling and sealing fin-tube spacing
High mechanical resistance

24. Dipping

25. Application - spraying -
normal spray application Thermoguard spray procedure with penetration

26. Acetic acid salt spray test

27. Sulfur dioxide resistance

28. 3000 h Salt Spray
Aluminum
Aluminum with Finguard

29. Other test results Chemical resistance UV resistance Adhesion
Flexibility
Wear resistance

30. Corrosion protection will increase the lifetime of a heat exchanger.
Lifetime extension
Corrosion protection will increase the lifetime of a heat exchanger.
Important features:
 Type of coating  Application
 Maintenance  Environment

31. Corrosion acceleration
Maintenance
Proper maintenance prevents:
dust, contamination and grease adhesion in the coil
blockage of the airflow
Capacity loss
Corrosion acceleration

32. Practical calculation
condensing temperature increase of 1 º C
drop of cooling capacity of 1.1%
raise of energy consumption of ± 1.3 %
(depending on compressor, refrigerant etc)

33. Repair costs of a machine
Conclusion
Thermoguard treatment requires a small investment compared to the return of:
Energy consumption
Capacity
Lifetime of the coil
Repair costs of a machine

34. Penetration

35. Adhesion

36. References Many large HVAC manufacturers Large accounts end-users
Big variation in market segments
(banks, hospitals, airports, trucks, ships etc)
Large exclusive projects:
Frankfurt Messe
Powerplants etc.

37. Thermoguard projects Shopping Centre KPN Telecom Hotels van Oranje
ESB Poolbeg (Power plant)
ESB Moneypoint (Power Plant_
Reserva Conchal (Hotel)
CuisineArt Resort (Hotel)
ABN-Amro (Bank)
Semi Conductor plant 
7 beleven
Walmart
Frankfurt Messe (Exhibition Center)
Hyunday Power plant

38. Manufacturers ClimaVeneta Carrier BAC Trane Petra
CIAT
Toshiba LG
Hitachi
Searle
Carrier
Trane
Johnson Control (York)
Lennox
GEA
Delphi
Alfa Laval
Mitsubishi
Güntner

39. Range of units

40. Thermoguard Heat Exchanger Protection
Secure nominal performance
Prevent energy loss
Reduce downtime
Ensure maximal life expectancy

41. CONTACT DETAILS G & M Radiator Manufacturing Co Ltd 23 Fordneuk Street
Glasgow G40 2TA
Phone:
Mobile: