Fluorine-Free Pickling Passivation Solution For Stainless Steel KM0226A

Q1: What’s your company’s core bussiness?

A1: EST Chemical Group, founded in 2008, is a manufacturing enterprise mainly engaged in the research, manufacture and sales of rust remover, passivation agent and electrolytic polishing liquid. We aim to provide better service and cost-effective products to global cooperative enterprises.

Q: The advantages about our electrolytic polishing liquid relative to the traditional chromic acid type electrolytic polishing liquid?

A: First of all, and is the most important, our products is environmental protection and does not contain heavy metal material, secondly, electrolysis products can through the FDA certification. Finally, our electrolyte have long service life (can be used at least one year as long as it is  according to our maintenance method), and universal used in stainless steel, stainless iron material

Q：Why the stainless steel products need passivation？

A：With the development of economy, more and more products are exported to Europe and the United States，But because of need to travel through the sea, abominable(terrible/awful) environment is easy to cause the products rust，In order to ensure the product does not rust on the sea, so must need to do a passivation treatment, in order to enhance product antirust corrosion resistance

Q:The products when to need adopt pickling passivation craft?

A: Products in the process of welding and heat treatment（In order to increase the products hardness , such as the heat treatment process of martensitic stainless steel）.Because of the product surface will form black or yellow oxides on the high temperature condition, This oxides will affect the appearance of the product quality, so must remove the surface oxides.