However, in order for the painted surface to be of high quality, the manufacturer must strictly control the strict requirements of technology in the powder coating line, from equipment and environment to technical level, paint mode. … This, sometimes, is difficult to control continuously and gives rise to errors on the painted surface. For details that do not require high paint quality, when minor errors arise, the manufacturer can completely repair those errors. But, for the details that require high quality, the paint surface is durable, resistant to all environments and harsh weather for a long time. Parts must be repainted from scratch or destroyed. For parts with a complex processing cycle through many stages, the destruction of the part at the final painting stage, will incur a lot of costs in production.

  On the other hand, for large production manufacturers, this will lead to a shortage of materials between stages, which can clog the production flow. Therefore, in order to spare for the production of orders, the Manufacturer is forced to increase the production quantity more than required. This will cause great waste for irregular orders. Over time, these costs are not small, which can reduce the competitiveness of Manufacturers compared to competitors.