Soda blasting is a process where a surface is cleaned, rust is removed, or coatings (of any kind) are stripped from a substrate. The soda blasting compressor propels a bicarbonate-of-soda based media via compressed air onto the surface to be cleaned. This process gently removes the material without harming the substrate and can be done wet or dry.
Soda blasting removes contaminants from a surface by the energy released when the soda crystals explode upon impact and spread the energy across the surface. This means that soda has a non abrasive action and will not wear the surface away, as a result of this, soda is far more flexible as a blast media and can be used in areas where other media, such a sand and shot, would damage the underlying surface. Soda blasting does not require water and therefore is suitable also for use in areas where water would cause damage and also in minus temperatures. Soda blasting was developed when the Statue of Liberty needed cleaning. Engineers there decided that they needed a system that would not damage the soft copper plate of the statue and also would have a minimal effect on the surrounding environment.