COMPOSITION FOR PREVENTING DEW CONDENSATION, METHOD FOR PREVENTING DEW CONDENSATION ON SURFACE OF WALL BODY AND WALL COVERING MATERIAL FOR PREVENTING DEW CONDENSATION

摘要

PURPOSE:The titled composition, prepared by incorporating asphalt with a urethane prepolymer obtained by reacting a specific polyether polyol with an organic isocyanate in a specified amount, and very effectove for preventing the dew condensation on the surface of wall bodies. CONSTITUTION:A composition for preventing the dew condensation prepared by incorporating 100pts.wt. asphalt with 10-100pts.wt. urethane prepolymer obtained by reacting a polyether polyol containing 15% or more ethylene oxide with an organic isocyanate and further preferably adding an antifungal agent thereto. The resultant composition is then mixed with 40-150pts.wt. water to form a slurry, which is then applied to the surfaces of wall bodies, dried and cured to prevent the dew condensation on the surfaces thereof. Thus, the aimed wall convering material for preventing the dew condensation having porous and hydrophilic laminate layers for preventing the dew condensation is obtained.