Powder Coating
is a type of coating that is applied as a free-flowing, dry powder. Unlike conventional liquid paint which is delivered via an evaporating solvent, powder coating is typically applied electrostatically and then cured under heat.
Sandblasting
is the operation of forcibly propelling a stream of abrasive material against a surface under pressure to smooth a rough surface, roughen a smooth surface, shape a surface or remove surface contaminants or coatings.