Manual sandblasting machine

suctionmobile

Surface preparation is the key factor in determining the success of a protective coating system. The objective of surface preparation prior to applying a coating system is to create proper adhesion of the coating to the original surface. Proper adhesion will occur if a suitable level of surface cleanliness and roughness (profile) is achieved. Wet Sand blasting is a common procedure for removing paint and rust from steel or other metal surfaces. As shown in the CD, with this procedure, a dry abrasive material or sand is mixed with the water jet to create an abrasive spray. This abrasive spray is blasted on the surface, which breaks away small piece of undesirable coating corrosion or other undesirable substances to create the desired white metal finish, perfect for recoating. Nozzle used in wet sand blasting consists of an ejector, which works on the principle of venturimeter. As soon as high pressure water passes through this ejector, vacuum is created and to this vacuum portion taping is provided to a suitable source of sand. As a result of this suction, sand is sucked inside and at the end through the spraying nozzle an abrasive fluid comprising of water with sand passes with high velocity. To avoid excessive wear, discharge nozzle tip is made up of tungsten carbide.