7 IN 1 CHEMICAL MANUFACTURER - If you're seeking manufacturers of 7-in-1 chemicals used in the Seven Tank Process for metal surface pretreatment, several reputable companies in India specialize in producing and exporting these chemicals. These chemicals are integral to processes like powder coating, enhancing corrosion resistance and paint adhesion on metal surfaces. * Overview of the Seven Tank Process - The Seven Tank Process is a standardized chemical treatment procedure used to prepare metal surfaces (often steel) before processes like powder coating or painting. This process involves seven sequential steps: 1. Degreasing: Removal of oils and grease. 2. Water Rinse: Elimination of degreasing chemicals. 3. Derusting: Removal of rust and scale. 4. Water Rinse: Elimination of derusting chemicals. 5. Phosphating: Application of a phosphate coating to enhance corrosion resistance. 6. Water Rinse: Elimination of excess phosphating chemicals. 7. Passivation: Sealing the phosphate layer to further enhance corrosion resistance. # 7 IN 1 CHEMICAL MANUFACTURER.