Fireproof and anticorrosive paint for expanding super-thin steel structure and its prepn.

The present invention relates to expansion type super thin steel structure fire proof corrosion proof coating capable of fire protection, waterproof, whether resistance, ageing resistance, rustproof etc. it is composed of epoxy modified high polymer chloride, polyammonium phosphate, tetranitrol, cyanurotriamide, melamine phosphate, antimony trioxide, aluminium silicale, chlorinated paraffin wax, titanium white solvent, its preparation method is: dissolve epoxy modified high polymer chloride in solvent under normal temperature, add poly ammonium phosphate, tetranitrol, cyanuro triamide, melamine phosphate, antimony trioxide, aluminium silicate, chlorinated paraffin wax, titanium white etc, disperse and grind to uniform to obtain the product.