... ageing,staining and weathering. 2.use on wood,fibreboard,paper,plaster,concrete,masonry surfacea 3.factory sale Water-repellent ;water- ... etc. This product can act as a wood, chipboard, paper, gypsum products waterproof material. This product is avirulent insipidity, ... diluted after seven times directly spray brush in the concrete, plaster, stones, metope ceramic tile, marble, surface interval two ...