NEUTRALIZER & SOUR -Safety Sour Liquid is a highly concentrated chemical formula The quality and effectiveness of the soap cutter, as it is an acidic powder Fast acting for the final rinse cycle with the washing programme. – works to avoid yellowing Textiles and neutralizes the alkalinity of the fabric and thus prevents Occurrence of gray color resulting from sedimentation of residuesSoap or alkaline salts on the fabric NEUTRALIZER & SOUR - Safety Sour Powder is a concentrated chemical formula of high quality and effectiveness for soap cutters. It is a fast-acting acidic powder used for the final rinse cycle in the washing program. - It works to avoid yellowing of textiles and equalizes the alkalinity of the fabric, thus preventing the occurrence of gray color resulting from the deposition of soap residues or alkaline salts in the fabric..