For proper bonding of paints to any surface, the base of the material must be clean – and completely free of contamination such as grease, dust, oils, rust and other impurities before being powder coated and electrocoated (ecoated).
Once the rust, oil, and scale are removed, the clean bare metal is again exposed for oxidation (rust). To avoid this, the material has to be coated with some type of conversion coating during the pretreatment process to prevent further oxidation before applying paint and also gives adhesion for paint.
The goal of the pretreatment process (i.e., cleaning process) is to ensure no contaminants remain between the surface and the paint because any residual foreign matter can reduce bonding integrity and will detract from paint appearance. To that end, an extremely effective pretreatment system is very critical for ensuring the overall success of the powder coating and ecoating operations.
The MPG pretreatment system features an environmentally responsible, phosphate free zirconium-based conversion coating technology. A zirconium-based pretreatment is more advantageous than the traditional zinc and iron phosphate pretreatments because it...
Recognizing the importance of this very critical step of the powder coating and ecoating process, MPG has gone the extra mile in the design and development of our proprietary 8-stage pretreatment system. The MPG pretreatment process employs the latest pretreatment technology and custom chemistry to ensure maximum coating adhesion for your parts.To Top of Page