International Intertherm 751CSA

International Intertherm 751CSA is a high performance coating that is applied using standard application equipment and cures effectively at ambient temperatures. It is suitable for application to hot surfaces operating in high temperature service up to 150°C.

Best Uses

Intertherm 751CSA has been specifically designed to provide a corrosion resistant barrier when used to protect steelwork beneath thermal insulation in areas that are subjected to wet and dry cycling.

It is ideally suited for use in the chemical process, offshore productions, Petrochemical and power industries, especially refineries and process units, pipe work, chimneys, vessels, flare stacks, exhausts, furnaces, exteriors of reactors, power plants, vents and other structures. Significant volumes of insulated and
uninsulated steelwork can be coated with a single specification, thereby reducing complexity and smoothing the progress of maintenance schedules etc.

Application

The recommended application method for this product is Air Spray, although brush, roller and airless spray are also suitable.

Ensure that all surfaces are clean, dry and free from contamination. Prior to application, all surfaces should be assessed and treated in accordance with ISO 8504:2000. Oil or grease should be removed in accordance with SSPC-SP1 solvent cleaning.

Steel
Optimum corrosion and temperature resistance will be achieved where steel substrates are abrasive blast cleaned to a minimum of Sa2½ (ISO 8501-1:2007) or SSPC-SP6. If oxidation has occurred between blasting and application of Intertherm 751CSA the surface should be re-blasted to the specified visual standard.

Any surface defects that are revealed by the blast cleaning process should be ground, filled, or treated in the appropriate manner. A sharp, angular surface profile of 50 microns (2 mils) is recommended.

Power Tool Cleaning (Small Areas Only)
Dependent on the service conditions, Intertherm 751CSA can be applied over power tool cleaned surfaces prepared to a minimum of SSPC-SP11 with an irregular 40 micron (1.6 mil) profile. Note, all scale must be removed and all areas which cannot be prepared adequately should be spot blasted to a minimum standard of Sa2½ (ISO 8501-1:2007) or SSPC-SP6. Please consult our Technical Team for the latest advice regarding this situation prior to commencing application of the coating.

Ultra High Pressure Hydroblasting / Abrasive Wet Blasting
Consult the Intertherm 751CSA Application Guidelines for more details regarding surface preparation.

Stainless Steel
Ensure that the surface is clean, dry and free from metal corrosion products prior to application. Light sweep with non-metallic and chloride free abrasive (e.g. aluminium oxide or garnet) to obtain anchor profile of approximately 50 microns (2 mils).