Waterproof casing rust should immediately after cleaning, rust of waterproof casing surface should be as soon as possible after coating, general appropriate painting within 4 hours, sunny days and normal atmospheric conditions should not be longer than 24 hours. Use should comply with the regulations of design of coatings, coating layers, each layer thickness, the coating step by step a time interval, paint mixing method and coating note, should be in accordance with the design documents or the manufacturer specification. Within the scope of the girth 200 mm on each side, should be the coating will have adverse impact on weld quality when welding shop primer, lest groove rusty. Girth welding, weld zone for secondary cleaning, using artificial besmear to brush reach the specified thickness. When the relative humidity in the air more than 85%, and steel plate surface temperature is lower than atmospheric 3 ℃above the dew point or above 60 ℃and environmental temperature under 10 ℃when, the coating is not allowed.
In order to improve the lifespan of the waterproof casing, if not special requirement, all need to be painted anticorrosive processing. Not only beautiful and long service life，Anticorrosive paint is the importance of our manufacturer after making good waterproof casing, for facilitating the clients to the scene not install when using error, so will the overall corrosion paint, inside and outside wall spray evenly again, and then sprayed on the casing model.
If the internal casing corrosion phenomenon, will inevitably have a certain influence on water quality. According to the different thickness have influence on the use of the pipeline material and time, at the same time; the corrosion is pollution to water again. So time is long, will cause the water inside the organic material consumption gradually, which is exacerbated by the increased amount of bacteria, the corrosion of pipelines is more and more big, so for waterproof casing, is to reduce its life. So the corrosion of the pipeline and the life of the waterproof casing has a certain relationship, spray paint anti-corrosive treatment is very important.
Installation and use of waterproof casing stage should do a good job of the pipe derusting, be clean up early, early found and maintenance of the principle, to avoid more serious
