There are several reasons of stainless steel products rusted in daily life:

1. Stainless steel surface accumulating the dust containing for other metals or heterogeneous metal particles attachments, in the humid air, fixtures and stainless steel condensate between the two together into a micro-cell , causing the electrochemical reaction , the protective film is damaged ,we called that the electrochemical corrosion.

2. Stainless steel surface adhesion of organic juice ( such as vegetables, soup , sputum, etc.), in a case of oxygen to form organic acids, Organic acids may cause corrosion on the metal surface.

3. Stainless steel surface adhesion containing acid, alkali, salts ( such as wall decoration alkaline, lime splash ) , causing localized corrosion.

4. In the contamination of the air ( such as rich in sulfides, carbon dioxide , nitrogen oxide atmosphere ) , the case of condensation water to form sulfuric acid, nitric acid, acetic acid solution point, cause chemical corrosion.

These conditions can cause damage to the stainless steel surface protective film to cause corrosion . Therefore, in order to ensure the metal surface of permanent shiny , not rust, we recommend :

（1） Must always clean the surface for decorative stainless steel, scrub to remove attachments, Eliminate corrosion caused by external factors.

（2） 201 /202 stainless steel material in coastal areas prone to rust, suitable in the absence of industrial pollution and air-corrosive environments.