ST-P311 high performance fluorine silicon spraying polyurea, from group A polyisocyanate to polymer and B polyamine copolymer, through high temperature and high-pressure reaction injection molding equipment, by the metering pump to the spray gun, after rapid mixing, spray to the base surface, rapid reaction consolidation into elastic, tough special polymer coating, with waterproof, anti-corrosion, wear-resistant, seepage and crack resistance.