Chemical additives for use in the cleaning of water; Chemical fluids for de-watering; Chemical preparations for aiding water quality; Chemical preparations for use in water treatment; Chemical products for the treatment of water; Chemical products for use in the treatment of water; Chemical products for use in water absorption; Chemical products for use in water retention; Chemical products for use in waterproofing of water courses; Chemical products for waste water treatment; Chemical products for water conditioning; Chemicals for treating water; Chemicals for use in the treatment of waste water; Chemicals for use in the treatment of water; Coatings for waterproofing (chemicals); Conditioning chemicals for waterbeds; Protective coatings for repelling water (chemical); Repellents for water; Sealing materials (chemical) for water permeable garbage disposal sites; Sealing materials (chemical) for water permeable soil; Sewerage water treatment chemicals; Water absorbing polymers; Water saving crystals; Water sealant preparations (other than paints); Water soluble polymers for industrial use; Water treatment preparations (chemical)