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. Various coatings for Ductile iron are discussed below for general atmospheric exposure to the pipe surface and underground exposure for buried pipe.
Unless otherwise specified, McWane Ductile furnishes Ductile iron pipe and fittings with an exterior asphaltic coating, also known as seal coat, at approximately 1-mil thickness.
McWane Ductile zinc coated pipe consists of a layer of arc-applied or paint-applied, 99.99% pure zinc coating, having a mass of 200g/m² with a finished layer of standard shop-applied bituminous paint in accordance with AWWA C-151.
Ceramawrap Epoxy is a very high solids, solvent free, fast curing two-component epoxy formulated especially to coat the exterior of Ductile iron pipe for aggressive atmospheres or liquids.
V-Bio® Enhanced Polyethylene Encasement
McWane Ductile is taking pipe protection to higher levels by recommending the V-Bio® Enhanced Polyethylene Encasement that provides significantly advanced corrosion protection for Ductile iron pipe.