Washing machines are popular domestic appliances which as their name imply are used to wash clothes with water and detergents. There are different kinds of washings machines in the market with a variety of applications. Front-load washing machine is one of the most popular home kinds. Most of these home appliances have several washing programs and are easily adapted to kitchens because of their front doors. Due to their permanent exposure to detergents and water which may cause corrosion, they should be protected by some coatings such as conversion ones. Conversion coatings are coatings whose main application is corrosion protection and are produced with a chemical or electrochemical process. Examples include chromate conversion coatings, phosphate and zirconium conversion coatings on steel, and anodizing. Among the conversion coatings, zirconium base coatings have advantages such as the absence of harmful elements such as nickel, chromium, and phosphate, no environmental pollution, ideal corrosion resistance, and better adhesion to the substrate. Generally, these coatings can be used for appliances which exposed to corrosive conditions. Moreover, they have become interesting for decorative applications due to their beautiful color and are used as an undercoat because of their special surface properties. On the other hand, conversion coatings have engineering applications due to their corrosion protection properties and decorative applications due to their surface properties. Accordingly, these coatings can be suitable for some appliances like washing machines. Nano metric conservation coatings are used in this product to get better corrosion and adhesion properties.