In January 2003 Nordson Benelux B.V. delivered upon request by Senter together with a consortium of four other Dutch companies, a complete boiler enameling plant based on Ferro’s electrostatic dry powder enamel technology to Leov Company in Veles, Macedonia in order to replace their environmental unfriendly galvanizing process.
Porcelain enamel provide a robust “glass-lining” to warm water tanks to protection them against corrosion caused by boiling water and is therefore used by leading manufacturers of electrical boilers, solar water heaters and/or other warm water containing applications.
Enameled mild steel tanks are typically used to eliminate expensive water tanks, made of copper and/or stainless steel, which are less suitable for operation in area’s with “poor water”.
When you are consider installing a new porcelain enameling factory, altering the enameling process and/or new equipment of your existing enameling plant or in/outsourcing your coating operation, you most probably want to determine your Return-On-Investment by comparing your actual versus future enameling cost.
Hot water tanks, which are typically used for (solar) boilers and water heaters, may be manufactured from either stainless steel, copper or mild steel.
The selection of the appropriate substrate depends on many factors, such as the annual production volume, the average dimensions of the tanks, expected water quality, desired product life and raw material cost.
Due to the ongoing price increases of stainless steel & copper, there is nowadays a worldwide trend towards manufacturing hot water tanks from mild steel.
HWT’s made of mild steel need to be coated internally, either with zinc, powder coating, nylon or enamel to protect it against corrosion.