METHOD FOR PRODUCING BUILDING INDUSTRIAL COATING MATERIAL COMPOSITIONS SUITABLE FOR PREVENTING, RENEWING AND REPAIRING EXTERMAL AND INTERNAL STRUCTURAL ENGINEERING ESTABLISHMENTS OF VARIOUS MATERIALS E.G.COCRETE, REINFORCED CONCRETE, BRICK, STONE, WOOD ETC.

摘要

Coating materials for the protection, renovation and restoration of inner and outer structures made of concrete, reinforced concrete, brick, stone, timber etc. above or below ground are prepd. by homogenising 1.0 part by wt. of the toluene or xylene soln. of polystyrene or a styrene-butadiene copolymer having a solids content of 10-70 wt% with 0.2-1.0 pts. by wt. aq. poly-vinylacetate dispersion having a solids content of 20-70 wt% and adding to 1.0 pt. by wt. of the resulting mixt. which may opt. contain additives e.g. companion polymer, pref. 0.3-2.0 wt% vinyl-alcohol-vinyl-acetate copolymer or acrylamide-vinyl-acetate copolymer, surfactants, pref. 0.01-0.2 wt% alkyl-sulphate or alkyl-aryl-sulphonate or alkyl-sulpho-succinate, plasticiser, pref. 1.0-6.0 wt% dialkyl-phthalate, flammability, suppressant, pref. 0.1-3.0 wt% alkyl-phosphate or aryl-phosphate, -2.0-26.0 parts by wt. filler, pref. quartz flour or limestone or perlite or coloured crushed stone or sized river gravel or a mixt. of these components.