The pretreatment process for powder coating is essential to ensuring the best finish possible. The main purpose of a pretreatment line is to clean and prepare a substrate to be coated. No matter how good the finish is or how well it is applied, it is critical to start with a clean, properly pretreated surface. Without a clean and paint-ready substrate, a quality coating is impossible. At Craddock Finishing Corporation, we have a 19 stage PLC chemical pretreatment line that features sixteen 500-gallon baths, a two stage natural gas dryer, and water treatment for a closed loop system.
Our automated pretreatment line includes both iron phosphate and trivalent chromate conversion coatings. Different substrates require a different pretreatment process, and most pretreatment regimens include a vigorous clean, rinse, conversion coating, rinse, and dry. In some cases a rust-preventative sealant or other conditioning is required.
At Craddock, nearly every metal part we finish is pretreated and receives either an iron phosphate or chromate conversion coating. The includes metal parts that we’re finishing for
Our automated pretreatment line includes both iron phosphate and trivalent chromate conversion coatings. Different substrates require a different pretreatment process, and most pretreatment regimens include a vigorous clean, rinse, conversion coating, rinse, and dry. In some cases a rust-preventative sealant or other conditioning is required.
At Craddock, nearly every metal part we finish is pretreated and receives either an iron phosphate or chromate conversion coating. The includes metal parts that we’re finishing for