Shot blasting is a machine that projects a large number of small steel shot towards the surface of the concrete, removing a thin layer. Most of the shot is then drawn back into the machine to be used again. The shot blaster has a dust collector attachment that makes for a virtually dust-free process. This is typically used on large projects where existing concrete is in need of prep for it's next covering.
Soda blasting is a non-destructive method for many applications in cleaning, paint and varnish stripping, automotive restoration, industrial equipment maintenance, rust removal, graffiti removal, masonry cleaning and restoration, soot remediation on fire damage, boat hull cleaning, mold remediation, along with several other uses.
Corn Cob Blasting
Corn Cob is ground to size and then is shot it through the blaster. The most common application for cob cob blasting is to clean logs intended for log homes. The blasting can be done prior to assembly or years later to give the logs a rejuvenated look.
Walnut Shells are ground to size and then are shoot it through the blaster. The most common use for walnut blasting is for removing paint from metal or other hard surfaces where potential substrate damage is minimal.