Waterproof bitumen tar paper commonly known as linoleum. A waterproof material used in the construction industry. The base paper has coarse texture, good oil absorption and certain tensile strength. Generally, rags and waste paper are used as raw materials, and high-grade ones can be mixed with some animal hair and slag cotton, which can be copied after beating directly. During processing, the base paper passes through the molten asphalt and is extruded by the hot roller to make the asphalt soak the paper layer, extrude the excess asphalt, and spread talc powder or fragment Mica on the surface for cooling. Use less.