The water-based environmentally friendly silicon PU course material independently developed and produced, the single component elastic material, its composition is composed of water-based organic silicon elastic dispersion liquid and water-based PU liquid as the base resin, with aggregate, filler, color paste, fine silicon fiber and other imported additives. Environmental protection silicon PU is an elastic motion coating system composed of cement foundation interface, repair layer, elastic layer, strengthening layer and surface coating. The single component material can be directly constructed on cement concrete, do not foaming, not from the layer, can be arbitrarily bent, can cover small cracks on cement concrete.