Chemical preparations for use as densifiers on concrete, terrazzo, masonry, natural stone, cast stone, tile, and cement-based surfaces; chemical preparations for use as hardeners on concrete, terrazzo, masonry, natural stone, cast stone, tile, and cement-based surfaces, and specifically excluding paints and oils; chemical preparations in the nature of preservatives for use on concrete, terrazzo, masonry, natural stone, cast stone, tile, and cement-based surfaces; chemical preparations for use as a stain repellent treatment on concrete, terrazzo, masonry, natural stone, cast stone, tile, and cement-based surfaces; chemical preparations for use as a densifier for inorganic or organic flooring surfaces, namely concrete, terrazzo, masonry, natural stone, cast stone, tile, cement-based flooring surfaces, and vinyl-based flooring surfaces; chemical preparations in the nature of preservatives for inorganic or organic flooring surfaces; chemical preparations for use as stain repellent for inorganic or organic flooring surfaces; chemical preparations for use as densifiers, namely, silicate-based densifiers; chemical preparations for use as a densifier for concrete or asphalt surfaces, and specifically excluding paints and oils; chemical preparations for use as a densifier for transportation surfaces, namely, walkways, parking lots, parking structures, roads, bridges, and runways; chemical preparations in the nature of preservatives for concrete or asphalt surfaces, and specifically excluding paints and oils; chemical preparations in the nature of preservatives for transportation surfaces, namely, walkways, parking lots, parking structures, roads, bridges, and runways, and specifically excluding paints and oils; chemical preparations for providing concrete, terrazzo, masonry, natural stone, cast stone, tile, cementitious, and asphalt surfaces with freeze-thaw protection; chemical compounds for curing concrete

Protective sealer coatings for use on concrete, terrazzo, masonry, natural stone, cast stone, and cement-based surfaces; penetrating sealer coatings for use on concrete, terrazzo, masonry, natural stone, cast stone, tile, and cement-based surfaces; coatings in the nature of industrial sealants for waterproofing concrete, terrazzo, masonry, natural stone, cast stone, tile, and cement-based surfaces; chemical-resistant sealer coatings for use on concrete, terrazzo, masonry, natural stone, cast stone, and cement-based surfaces; stain-resistant sealer coatings for use on concrete, terrazzo, masonry, natural stone, cast stone, and cement-based surfaces; wear-resistant sealer coatings for use on concrete, terrazzo, masonry, natural stone, cast stone, and cement-based surfaces; sealants being coatings in the nature of industrial sealants for hardening and waterproofing inorganic or organic floor surfaces; sealants being coatings in the nature of industrial sealants for hardening and waterproofing concrete or asphalt surfaces; sealants being coatings in the nature of industrial sealants for hardening and waterproofing for transportation surfaces; chemical preparations for use as protectants in the nature of protective coatings for exterior surface pavement and pavement joints; sealer coatings for use on flooring, transportation surfaces, and hard surfaces; penetrating sealer coatings for use on flooring, transportation surfaces, and hard surfaces; paints for pavement; coatings in the nature of stains; colorants