The PP surface coating series products are specialized extruded composite materials made by blending polypropylene (PP) as the matrix, talc powder as the main filler, and additives for modification. They are developed as modified plastics for the surface coating of automotive interior and exterior parts. The material has excellent weather resistance, scratch resistance, and excellent surface appearance. The main processing method is extrusion molding, which is widely used for exterior surface coatings with high requirements such as water cutting inside and outside automobiles, decorative strips, etc.