The most comprehensive knowledge about stainless steel painting: advantages, disadvantages, uses, and structure – understand all 6 key points at once.
Stainless steel is widely used in construction, industry, and home appliances due to its excellent corrosion resistance and high strength. However, a plain stainless steel surface may not meet specific design requirements, so "stainless steel baking paint" technology was developed to provide metal materials with more colors and protective layers.
So, can stainless steel really be painted? What are the results after painting? This article will delve into six key aspects of stainless steel painting, including its principles, processes, advantages and disadvantages, and applications, to give you a comprehensive understanding of this technology and provide you with the most complete knowledge about stainless steel painting!
Can stainless steel be painted?
Stainless steel coils can be painted, but proper surface treatment is required to ensure strong coating adhesion and durability. The main steps are as follows:
Surface cleaning treatment
Use a degreaser and tap water to clean the surface and remove grease and dirt.
Surface passivation treatment
A chemical film-forming agent is applied to the surface of a stainless steel plate using a roller coating method.
Primer coating
The primer is usually a PU or PE system. After coating, it is baked in a curing oven to bring the steel plate to the required temperature, and then cooled by water quenching.
Topcoat Baking
There are many topcoat systems, the most common being PE, SMP, and PVDF. Other processes are roughly the same as for the primer.
Advantages of stainless steel baking paint
Strong corrosion resistance
- Rust resistance: Stainless steel itself has good corrosion resistance, and the paint treatment further enhances the protection and extends the service life.
- Chemical resistance: It can resist the erosion of a variety of chemicals and is suitable for harsh environments.
High aesthetic appeal
- Diverse Colors: The paint offers a wide range of color options to meet different design needs.
- Smooth surface: The paint surface is flat and smooth, enhancing the visual texture.
Highly durable
- Wear-resistant: The paint layer effectively prevents scratches and wear.
- Excellent weather resistance: It can withstand ultraviolet rays and extreme weather, making it suitable for outdoor use.
Stainless steel baking paint application
- Stainless steel paint is commonly used in engineering and construction materials such as power plants, factories, public works, warehouses, and traditional roller doors.
- Stainless steel paint is also used in home appliances such as washing machines, microwave ovens, and other white goods.
Stainless steel baking oven specifications selection
Kai Ching is a professional manufacturer of painted steel sheets, possessing state-of-the-art continuous painting production lines. We can meet all customer needs for painted stainless steel products such as SUS304 and SUS443, with sheet thicknesses ranging from 0.2mm to 1.5mm and sheet widths from 600mm to 1250mm.
Kai Ching Stainless Steel Painting Steel Products Engineering Achievements
Linkou Power Plant SUS304 substrate, PVDF coating system
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SUS304 substrate and PVDF coating system for coal storage silos at Taichung Power Plant.
Commonly used stainless steel painted tongue and groove plates, corrugated plates, etc.