Cast Iron/Ductile

Introduction – While cast iron and ductile iron can be used unpainted in some environments, there are many occasions, such as piping, when it is painted.  For the coatings to adhere and provide the desired service life, the quality of surface preparation and coating application must be assured.  This can be accomplished by thoroughly inspecting

Introduction – Cast iron and ductile iron can be coated with a variety of coating systems for both beautification and protection.   The selection of specific coatings depends on the service environment and the requirements for aesthetics. Coatings for cast iron are discussed below for general atmospheric exposure of cast iron surfaces and for underground exposure

By Jay Helsel, PE, KTA-Tator, Inc.  Introduction – Cast iron and ductile iron are two different materials but are prepared and painted similarly.  Ductile iron consists of iron, carbon, silicon, manganese, magnesium, phosphorous and sulfur, whereas ductile iron consists primarily of carbon and silicon together with nodular graphite to provide ductility. Ductile iron is commonly