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India cookers automatic powder coating lines spraying pretreatment fast color change booth system M 86 150 8119 5156 (wechat/whatsapp) Spray Type Pretreatment Description Technically, The surface of workpiece must be completely clean, if you expect perfect powder coating work. We can process painting work on metal surface, but it usually will not give your excellect layer withstand corrosion. That is why Good pretreament must be needed. It will effectively reinforce powder coating work, which make the layer bond to metal surface perfectly, that will give you very smooth surface withstand external weathering and rust problem. Generally speaking, you expect excellent powder coating job, you need good pretreatment process. Groove design at the bottom of spay booth Working principle: Part of the electrostatic powder missing the target will fall by gravity, and drive to move by the micro-negative pressure at the groove, then directly move into the filter recovery unit. The spray room flo
