General requirements for decorative materials: smooth surface, abrasion resistance, good thermal insulation, not suitable for static electricity, moisture impermeable, non-hygroscopic, easy to process, good sound absorption, no dust on the surface, easy to remove dust attached to the surface, Cheap and affordable. Such as: general requirements for the ground: wear-resistant, anti-static, anti-slip, erosion-resistant, easy to clean, no seam processing; general requirements for the wall: not easy to dirty, easy to clean, impact resistant, smooth surface, once the surface peels off or No dust is generated when the damage occurs, and the curved material can be treated with the curved material or the sealing material; the sealing joint material requirements: good sealing performance, elasticity, aging, easy to coagulate and solidify, the material is as single-component as possible, easy to construct, There is a certain degree of adhesion, color appearance and decoration coordination.