1 Adhesives for waterproofing; waterproofing chemical compositions; chemical preparations for waterproofing masonry; coatings for waterproofing [chemicals]; waterproofing preparations [chemical]; cement-waterproofing chemicals, except paints; additives (chemical -) for use in waterproofing concrete; weather proofing compositions [chemicals] for impregnation into concrete; impregnants for exterior surfaces of buildings [other than paints or oils]; weather proofing compositions [chemicals] for impregnation into masonry; waterproofing membranes in liquid chemical form for use in construction; purification chemicals; absorbents for cleaning solvents; substances (chemical -) for cleaning mortar