Surface preparation is paramount for an effective and successful coating application. A substrate that is dirty, greasy, insufficiently textured, or still has old paint can mean the difference between a valuable coating investment and a failure. One of the most effective methods of substrate preparation is abrasive blasting. Abrasive blasting is the process of modifying or cleaning a substrate by blowing abrasive material at high pressure towards its surface with either air or water. The combination of pressure and the grit abrade the surface in a controllable manner. Abrasive blasting (aka grit blasting or sandblasting) is the umbrella term for these processes; individually they are known by the type of material or grit being used for abrasion.