Difference between Type 1 and Type 2 peeling.
To extend the coating lifespan, it is essential to use Type 1 surface preparation (blast treatment) that can completely expose the metal surface, rather than Type 2 surface preparation.
**Differences Between Type 1 and Type 2 Keren in Paint Stripping** Paint stripping was performed using Type 1 and Type 2 Keren. When we magnify the surface after processing, there is a significant difference. [See image] What exactly is Keren? It is introduced in the link below: [What is Keren often heard in painting? Purpose and types] https://www.nc-net.or.jp/company/98405/product/detail/196279/ **About Keren Work** The most important aspect of painting is substrate preparation. Substrate preparation, also known as "Keren," can be divided into four types: Type 1 Keren to Type 4 Keren, depending on the work content and processing method. All methods aim to change the surface to a state more suitable for painting, but there is a significant difference in the finish between Type 1 Keren and Type 2 Keren, as shown in the photos. In metal painting, the lifespan of the paint is said to be around 10 to 50 years at most. What influences this paint lifespan is not the type or quality of the paint or the painting technique, but the processes before painting. The method of substrate preparation is the cause that affects paint lifespan. Type 1 Keren or Type 2 Keren accounts for about 50% of the difference in paint lifespan.
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