Six stainless steel surface treatments
Stainless steel is hugely versatile, but much of its versatility relies on surface treatments to balance functionality, durability and aesthetics. Here we take a look at some of the most common surface treatments that help ensure the performance, resistance and visual appeal of stainless steel.
Mirror polishing
Mirror polishing is used to achieve an extremely reflective finish, using either chemical or physical abrasion. This type of surface treatment will remove any surface imperfections and create a uniformly brightened result. This is one of the most common surface treatments used in medical devices, automotive trim, and high-end architecture, thanks to the modern, sleek finish it can create.
Sandblasting
This is a treatment that uses a mechanical approach to gain a textured, matte finish. High pressure is used to propel abrasive materials that etch the surface of the stainless steel. This is common on art installations, anti-slip surfaces, and industrial machinery enclosures. It hides weld marks and scratches and can improve the adhesion of coating work, for example, painting, offered by surface treatment specialists such as poeton.co.uk/surface-treatments.
Chemical treatment
Electrochemical processes are used to modify the surface properties of the metal and include anodising, passivation, and electroplating. These surface treatments can be used on anything from chrome plating bathroom fittings to creating aerospace components.
Surface colouring
Colouring can improve the appearance of stainless steel, as well as improve its performance. Permanent colours can be produced using acid solutions and oxidation, and are commonly used for kitchen appliances such as coloured sinks and architectural panels.
Linear texturing or brushing
These surface treatments can create the directional surface patterns that are often integral to a contemporary, industrial look. You may find this on everything from smartphone frames to kitchen cabinets and lift interiors. It can hide minor defects and fingerprints while providing non-reflective surfaces to reduce glare.
Powder coating
Colourful, durable finishes can be created by electrostatically applying dry powder coatings. This process is often used on automotive exhaust systems, outdoor furniture, and many other items.
