General Steel constructions
Usually ISO 12944 is referred too to describe the corrosive conditions of the object to protect. For a moderate aggressive degree a system with one-component products that do not require intensive preparations are chosen, like, for instance alkyd or chlorinated rubber paints. These products allow an easy maintenance and especially the latter also show good protective characteristics against chemical attacks and humidity.
With the use of two component products, such as epoxy, higher chemical resistances and the possibility of applying thicker coats can be obtained. In some cases, mixed systems are specified or used that combine the better durability of an epoxy primer and intermediate coat and the easy maintenance of a single pack finish.
The typical system recommendations are ranked according to corrosive conditions as specified in ISO 12944 and have been translated into Transocean products and systems.
Please note that not all Transocean systems are represented. To avoid confusion and for sake of clarity, the number of systems is limited to the ones that are believed to be commonly used.
System recommendations give the reader a quick review of the possibilities and may provide a starting point for fruitful discussions with your local Transocean representative.
C2 - low corrosivity according to ISO 12944
C3 - medium corrosivity according to ISO 12944
C4 - high corrosivity according to ISO 12944
C5-I very high (industrial) corrosivity according to ISO 12944
C5-M very high (marine) corrosivity according to ISO 12944
Read more about ISO 12944 in our guide to protective coating selection using ISO 12944.
