Metal coating peeling causes
If proper surface preparation (substrate adjustment) is not carried out before painting, there is a high possibility that the metal and paint will not adhere properly and will peel off.
To maintain a beautiful paint film for a long time without peeling, the following four points are important: 1. Degreasing Treatment Metal materials are often exposed to cutting oils and other substances during cutting and processing. Therefore, most processed materials have oil residues on their surfaces. If there is oil on the surface, the paint will be repelled, leading to poor adhesion. It is important to thoroughly wipe off the oil using organic solvents such as thinner and allow the surface to dry. 2. Substrate Treatment (Surface Preparation) Prepare the substrate to be suitable for painting. This process, also known as "keren," involves scraping the surface to create scratches that enhance paint adhesion. If rust has already formed, painting over it will allow rust to progress beneath the paint, so it must be removed. Painting over deteriorated paint films can also cause poor adhesion, so the old paint film should be stripped away. Methods include blast treatment, sanding with a disc sander, or scrubbing with a wire brush or sandpaper. After processing, debris will be generated, so be sure to clean thoroughly! 3 and 4 are detailed in the basic information below.
- Company：原田鉄工
- Price：Other
