If we want to spray the PVC fence, what problems should we pay attention to when spraying powder and how to spray powder is the best. As a professional PVC fence manufacturer, Xiaobian and everyone together learn how to do the powder spraying problem of PVC barrier.
Dusting process, should pay attention to conductivity of the spreader and spreader on Xu layer shoulds not be too thick, too thick can remove the coating appliance which take the method of centralized incineration; due to heavy workpieces, must design a good carrier, firm and reliable requirements of hanger.
The purpose of pre drying is to remove the remaining moisture on the workpiece, and the two is to ensure that the thickness of the powder coating is well attached to the surface of the workpiece. The three is to ensure that the workpiece is uniformly heated as soon as possible, and the curing temperature is 80 to 140 degrees.
For the PVC barrier products, according to its characteristics, the form of automatic spray gun plus manual spray gun and complementary spray is adopted to monitor the quality of powder spraying and ensure the quality of products. The curing conditions of the general polyphenol powder coating are 200 c, 10min, and the curing temperature and time are ensured by adjusting the temperature and the chain speed of the reheating furnace.