Henkel Chembond Surface Technologies Ltd. Manufactures Acidic Phosphating Agent for Manganese Phosphate Coatings. Henkel Chembond Surface Technologies Ltd. Is the manufacturer of various products for metal pre-treatment, water treatment, protective coatings, building chemicals, and monitoring instrumentation. Acidic Phosphating Agent for Manganese Phosphate Coatings is a nitrate-accelerated phosphating process which is used to produce dark-grey to black manganese phosphate coatings on iron and steel. Acidic Phosphating Agent for Manganese Phosphate Coatings is used in combination with anticorrosive oils [sloshing oils] or waxes, the decorative phosphate coatings offer an excellent corrosion protection. It prepares the surface for painting or extrusion by providing uniform phosphate layer on substrate by conversion process.