Three oil and two cloth is a kind of anti-corrosion method, which is generally used for direct buried anti-corrosion of buried pipelines. There are many kinds of oils, such as asphalt paint, asphalt, polyurethane, epoxy resin, etc. Cloth may be glass fiber cloth, non-woven cloth and other textiles. The main function of cloth is to increase the pulling force of anti-corrosion coating and prevent cracking and water seepage of anti-corrosion oil after hardening. What "oil" and "cloth" to use is specified by the design. This kind of "three oil and two cloth" is to apply a layer of "anti-corrosion oil" on the pipeline after cleaning and derusting, wrap a layer of "cloth" and then apply a layer of "anti-corrosion oil". After the "anti-corrosion oil" is dry, apply a layer of "anti-corrosion oil", wrap a layer of "cloth", and apply a layer of "anti-corrosion oil" evenly and completely on the surface, totaling three oils and two cloth.
