▎ 摘　　要

NOVELTY - A multilayer coating (100) comprises a coating layer (110) comprising 2-15 (weight/weight)% calcium silicate with hexagonal boron nitride and/or graphene, and intermediate layer (120) which is arranged between the coating layer and a substrate (130). USE - Multilayer coating. Uses include but are not limited to portable electronic devices such as notebooks, tablet computer, desktop computer, construction, nuclear refractory and aerospace coating applications and health care. ADVANTAGE - The multilayer coating has excellent hardness, strength and corrosion and wear resistance on substrate surface and chemical stability to withstand UV light. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) manufacture of multilayer coating; and (2) coating composition, which comprises 2-15 (weight/weight)% calcium silicate with hexagonal boron nitride and/or graphene, and liquid medium, and has pencil hardness of 6H or more as a cured coating on the substrate. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the multilayer coating. Multilayer coating (100) Coating layer (110) Intermediate layer (120) Substrate (130)