Shot Blasting
The most widely used surface treatment method is used to clean, strengthen (peen) or polish the surface of stainless steel castings. Low cost.
Mirror Polishing
The brightest surface polishing way can achieve a very smooth and shining surface like a mirror. Only suitable for outside areas of stainless steel castings.
Electropolishing
Electropolishing is usually used to remove surface tiny burrs and improve the brightness and the corrosion resistance of stainless steel castings.
Pickling & Passivation
Pickling is a chemical treatment way to eliminate surface dirt like oxide skin, rust, welding spots, etc. And passivation is a process that forms a new abundant chromium protective layer, thus improving the anti-oxidation ability of stainless steel castings.
PVD Coating
PVD coating is a surface finish way to color stainless steel castings. After finished castings, the casting parts are better to mirror polished or electropolished. There are various colors for stainless steel castings. Such as gold, rose gold, etc.
Vibratory Polishing
Used to burnish, deburr, descale, clean, and brighten stainless steel castings. The surface looks smooth and a bit shining, but with less brightness than a mirror-polished surface. Compare to other deburring methods, Vibratory Polishing can prevent stainless steel castings from being bent or distorted.