HY-2100 specification at room temperature zinc phosphating agent 
 This process is suitable for pre-coating the surface of the iron and steel products processing, the product surface layer of gray water-insoluble phosphate laminating, coating of metal surfaces to improve adhesion, and inhibit corrosion under the coating film. Handling and spray immersion can be used two ways, both at room temperature. 
 Process 
 → degreasing → washing → washing → washing → washing → rust tone → phosphate → Table → washing → drying or spray drying. 
 A. Construction bath: 
 Calculate the volume of work phosphate pool m3, the first injection of 3 / 4 Chi Qingshui, adding HY-2100 bonderite 100kg, stir after adding neutralizer 3 ~ 4 kg/m3, accelerator 2kg/m3 mix, detection of phosphorus The free acidity of the solution, then the free acidity neutralizer carefully adjusted to about 0.6, add water to the work surface. Phosphating solution prepared early for some parts of the treatment effect may not be satisfactory, subject to a short-term "maturity" to enter the steady state. Ripening process is beginning with the phosphating solution to deal with the steel surface (about 50 ~ 200 m2/m3), when the phosphate solution appeared light brown, and the emergence of FePO4 alum, the basic completion of maturation, when the appearance of phosphate coating and protection will further improve the solution in steady state. 
 Technical indicators and treatment conditions: 
 Technical processing conditions 
 Ratio of the amount (%) 5-8 phosphating temperature (℃) at room temperature 
 Total acidity (points) 25 to 45 phosphate time (min) 5 ~ 15 
 Free acidity (points) 0.3 - 0.7 processing area (m2/KG) 20 ~ 30 
 Accelerator 2.0 ~ 4.0 bath look green transparent liquid