▎ 摘　　要

NOVELTY - A lightweight salt spray and wave-absorbing coating comprises radar absorbing layer, reflection conversion layer and radar absorbing layer from the inside to the outside. The radar absorbing layer comprises absorbing filler, additive and resin. The reflective conversion layer comprises microporous fillers, additives and resins. USE - Lightweight salt spray and wave-absorbing coating for aircraft application. ADVANTAGE - The lightweight salt spray and wave-absorbing coating is prepared by a few step reaction with strong feasibility. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of the lightweight salt spray and wave-absorbing coating, which involves (1) adding leveling agent, dispersant, and anti-settling agent to the resin under stirring conditions, slowly adding wave-absorbing fillers, stirring until evenly dispersed, obtaining radar absorbing layer paint, (2) adding leveling agent, dispersant, defoamer, and adhesion promoter to the resin system under stirring conditions, and after fully stirring, adding microporous filler, stirring until evenly dispersed, obtaining reflective conversion layer paint, (3) making two paints prepared in steps (1) and (2) into a sandwich structure comprising bottom radar absorbing layer, intermediate reflection conversion layer and surface radar absorbing layer.