1. Mechanical Polishing: This method is used for small scale restoration; minute scratches and marks can be removed by gently rubbing the surface with a soft cloth or sandpaper.
2. Chemical Cleaning: Chemical cleaning is often used to remove surface deposits such as rust and corrosion from stainless steel. This process involves the application of an acid or alkaline solution that reacts with the deposits to form a new compound, which can then be rinsed away.
3. Electropolishing: A process where an electrical current is used to remove grains of material from the surface of the stainless steel. Electropolishing is more thorough in its removal of rust and corrosion than chemical cleaning and is ideal for sensitive components such as food contact surfaces.
4. Laser Cleaning: This process involves directing a beam of energy at the surface of the stainless steel; the energy of the beam breaks the bonds between molecules, which causes the deposits to be removed.
5. Corona Cleaning: This method is used in a very controlled environment; a plasma environment with a high electric field is created which causes the outermost layers of the stainless steel surface to be removed. This leaves the surface clean and free from any deposits.
6. Hot Water Cleaning: This process uses hot water and steam to clean the surface of the stainless steel. The hot water penetrates into the crevices and deposits, removing them without damaging the surface.
7. Ultrasonic Cleaning: Ultrasonic cleaning is used to clean stainless steel components that cannot be easily accessed or that require a more gentle cleaning process. An ultrasonic bath is filled with a cleaning solution and then ultrasonic waves are used to breakdown and remove the deposits.
8. Sandblasting: This process involves the use of a specialized machine that sands the surface of the stainless steel to remove any dirt and deposits.
9. Vapor Degreasing: This method is used to remove oil and grease from stainless steel. This process involves immersing the stainless steel components in a vapor stream in which the oil and grease are removed from the surface.
10. Bead Blasting: This method involves propelling beads of glass or mineral against the stainless steel surface to remove any debris, dirt, and deposits. It is ideal for removing small deposits in hard to reach areas.