Painting Process In Automotive Industry Ppt8 As the shell exits the cleaning station it goes via a drying booth and then via an undercoat dip—an electrostatically charged bath of undercoat paint (referred to as the E-coat) that covers each nook and cranny of the physique shell, each inside and out, with primer. This coat acts as a substrate surface to which the best coat of colored paint adheres.
One element and two portion formulations are usually referred to as 1k and 2k respectively. 7 OEM (original equipment manufacture) clear coats applied to the metal bodies of cars are typically 1K systems since they can be heated to about 140 deg C to effect cure. The clear coats applied to the plastic components like the bumpers and wing mirrors nonetheless are 2K systems considering that they can usually only accept temperatures up to about 90 deg C. These 2 K systems are usually applied “off line” with the coated plastic components fixed to the painted metallic body. Owing to the distinction in formulation of the 1K and 2K systems and the fact they are coated in various locations they have a different effect on the “redissolving” of the metallic base coat. This is most very easily observed in the light metallic paints like the silver and light blue or green shades exactly where the “flop” distinction is most marked.
9 Soon after the E-coat bath, the shell is once again dried in a booth as it proceeds on to the final paint operation. In most automobile assembly plants nowadays, car bodies are spray-painted by robots that have been programmed to apply the precise amounts of paint to just the proper places for just the right length of time. Considerable investigation and programming has gone into the dynamics of robotic painting in …Read more