Most specialist surface treatments are used in manufacturing to improve the durability, wear resistance, corrosion resistance, aesthetic appearance or functional performance of components made from different materials. By selecting the appropriate process for the job at hand, it is possible to protect components from wear, corrosion, moisture or friction and allow them to continue performing optimally for longer.
Phosphating and Passivation
Phosphating is a chemical process applied to steel and iron surfaces. The resulting coating provides an ideal paint substrate and has moderate corrosion protection. Phosphating is commonly used within manufacturing on vehicle panels, components and general items requiring a hard durable, corrosion resistant coating prior to painting.
Passivation is commonly used on stainless steel. The process removes contaminants and helps the natural protective layer reform on the surface. This improves resistance to rust and chemical attack without changing component size.
Electroplating and Anodising
Electroplating uses an electrical current to deposit a thin metal layer onto another surface. Nickel, zinc and chrome are popular choices because they improve corrosion resistance and appearance. This treatment is widely used on automotive fittings, tools and electrical parts.
Anodising is a process commonly used to provide a durable wear resistant coating to aluminium components. The coating formed is an integral part of the component itself and allows for coloured finishes.
For those comparing industrial surface treatments, consider checking out an expert such as https://www.poeton.co.uk/surface-treatments/.
Choosing the Right Method
Each treatment serves a different purpose. Electroplating can combine style with protection, anodising suits aluminium, phosphating helps coatings bond well, and passivation preserves stainless steel performance.
