Phosphating plant

Wash and Phosphate Pre-Treatment Conversion Coating Lines for Powder Coat Prep Best Technology offers the latest phosphating equipment lines for metal part or weldments used in various applications including powder coating phosphate wash pre-treatment. What is phosphating and why phosphate parts? Phosphating or conversion coating is a manufacturing process in which an acidic bath solution reacts with the metal part or weldment and combines with or causes a conversion of the metal part along which is uniform and inert to the environment. Such conversion coating combinations include zinc phosphate, iron phosphate, chromate, or manganese phosphate. Benefits of this process are creation of a surface that is tightly bonded to the base metal, increased surface area, improved corrosion resistance, and better adhesion post processes like the powder coating paint. Phosphating can be performed on ferrous (iron, steel based) and non-ferrous surfaces (zinc, chrome, aluminum, and manganese). The most common use for phosphating is pretreament of parts before powder coat painting. Powder coat paint is a dry finishing process that uses finely ground particles of color which are electrostatically charged and sprayed onto electrically opposite charged or grounded parts. Naturally opposite charges attract, so the charged powder particles adhere to the part. The parts are typically placed in a curing oven to melt the powder into a uniform colored layer.