Article name 120 mm x 10 m damp room system waterproof for tape everbuild aquaseal joint 12 cm Nellie's laundry soda dissolve quickly in cold or hot water, rinses thoroughly and leaves no residue that make fabrics stiff and irritating. Nellie's laundry soda dissolve quickly in cold or hot water, rinses thoroughly and leaves no residue that make fabrics stiff and irritating. This package contains 50 uses, on average, based on weight. The precise number of uses will vary slightly with packaging variations, settling during shipment and method of scooping.Nellie's Laundry Soda dissolves quickly in cold or hot water, rinses thoroughly, leaves no residue that makes fabrics stiff and irritating.