COMPOSITIONS AND METHODS TO PROTECT CALCITIC AND/OR SILICEOUS SURFACES

摘要

Calcitic and/or siliceous architectural and construction materials are provided with increased resistance to damage from water, oil, grease and weather by a process which comprises treating said materials with an aqueous composition containing:(A) from about 0.1 to 4% by weight on a 100% solids basis of an aqueous solution or self-dispersed emulsion or dispersion of a copolymer which is a reaction product of monomers containing fluorinated groups, cationic groups and nonionic groups,(B) an effective amount of a penetration assistant, and(C) water to make up 100%.