Abrasive blast cleaning encompasses a variety of methods that include the use of several types of media propelled by water or air. The abrasives media vary widely, from Rice Hulls and Walnut Shells to various Slag, Garnet and Steel Shot. Typical blast cleaning minerals include Olivine, Specula, Hematite and Garnet. Man-made media used for blast cleaning include Plastic, Coated Minerals, Recycled Glass, Steel Shot, Coal Slag, Copper Slag and Nickel Slag.The same variety of coating needs to know the surface and environment situation.