Epoxy coal tar anti-corrosion spiral steel pipe is commonly referred to as "several fabrics and several oils". Common ones include one fabric and two oils, three fabrics and two oils, five steps and three oils, seven fabrics and four oils. The components of epoxy coal tar anti-corrosion spiral steel pipe are epoxy coal tar primer and topcoat, both of which are mainly composed of epoxy resin and coal tar as film-forming materials, and are made by adding various anti rust pigments, insulating fillers, toughening agents, leveling agents, diluents, anti settling agents, etc. Appearance: Primer component A is iron red, component B is black, and the topcoat is black.

Epoxy coal tar anti-corrosion spiral steel pipe has excellent resistance to chemical media corrosion and good physical and mechanical properties, good adhesion, tough coating, and excellent electrical insulation and permeability resistance, anti stray current and anti microbial erosion. After film formation, it can reduce the number of construction passes. The main implementation standards are SY/T 0447-96 "Technical Standard for Epoxy Coal Tar Anti corrosion Coating of Buried Steel Pipelines" and SY/T 0457-2000 "Technical Standard for Liquid Epoxy Coating Internal Anti corrosion Coating of Steel Pipelines".

The main epoxy coal tar anti-corrosion spiral steel pipe is used for the external wall anti-corrosion of buried or underwater steel oil, gas, water, and heating pipelines. It is also suitable for anti-corrosion of various steel structures, docks, ships, water gates, gas storage tanks, equipment in refineries and chemical plants, as well as waterproofing and leakage prevention of concrete pipes, sewage tanks, roof waterproof layers, bathrooms, basements, and other concrete structures.