Chemical additives for drilling muds; Chemical additives for use as binding agents in concrete, masonry; Chemical additives for use in the manufacture of cemement, mortars, stone, concrete, polymers; Chemical additives for use in repairing masonry, accelerating the hardening of concrete, use in the mixing of cement, use in concrete repair, use as air void formers, use in water flotation, use in clean water, use in the production of metalworking fluids, use in metal casting; Chemicals for the ...