Coatings
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.
Asphaltic Coating
We furnish Ductile iron pipe and fittings with an exterior asphaltic coating, also known as seal coat, at approximately 1-mil thickness. Although studies have shown that standard seal coating added to the annealing oxide layer on the surface of Ductile iron pipe has a positive impact on corrosion resistance, it is not intended as stand-alone protection in corrosive environments. Please contact your local McWane Ductile representative for assistance with additional protective coatings and linings.
Zinc-Coating
McWane Ductile zinc coated pipe consists of a layer of arc‑applied or paint‑applied zinc coating, consisting of 99.99% pure zinc with a minimum mass of 200 g/m², finished with a standard shop coat in accordance with ISO 8179.
Ceramawrap Coating
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 Plant & Industrial 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.