Shot Blasting 

When preparing architectural or structural steel for finishing, shot blasting is becoming the most popular process in the steel industry. The shot blasting process removes debris from surfaces and produces a clean, polished finish ready for galvanization. 

Unclean oxidized material can be a cause for concern. Sharp edges and chipped sections can cause lacerations, causing ongoing issues with rust and uneven surfaces. Oxidized material also causes problems with the fabrication process therefore, it is always recommended that shot blasting is carried out before any type of welding or machining is attempted. 

What is Shot Blasting?   

Shot blasting is used to clean, strengthen, and polish metal by removing any grease, dust, and rust before repainting, remodeling, and galvanizing. It is of a similar process to the well-known sandblasting. Both have the same result but how they are actioned is slightly different. Shot blasting produces force from a mechanical device to propel treatment media onto the product ready for galvanizing, this treatment media consists of minerals, metal, glass, and organics such as walnut shells.  Shot blasting is slightly more aggressive than sandblasting therefore, it is better suited to non-delicate, larger surfaces or a commercial, large-scale purpose. 

Shot blasting vs sand blasting? 

Companies are recently leaning towards shot blasting rather than sandblasting due to the health risk associated with the sandblasting process and abrasive treatment. Sand used for the blasting process is widely made from Silica whereas as stated above shot blasting is made from organic products. When inhaled Silica particles cause severe respiratory illnesses by lodging in the respiratory system. Silica dust is also a known cause of lung cancer. Shot blasting is a non-carcinogenic process and contains no solvents meaning it poses no health risk to its user. 

The technique of shot blasting can be altered to suit the requirements of the desired result. The process can be adjusted depending on which result is preferred. Shot blasting can be finished in a smooth, rough, or fine surface area depending on the users' specific request. 

Materials used for shot blasting  

Carbon Steel 

Engineering Steel 

Stainless Steel 

Cast iron 

Titanium 

Copper 

Concrete 

Certain types of ceramics 

These are included, but not limited to, if you require shot blasting on a material not listed above, contact us today where we will be happy to assist you further.  

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