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Know More about Sand Blasting A process wherein a fine granular sand is applied using high pressure against a rough surface to make it smooth is called sand blasting, or commonly known as “abrasive blasting”. In this process the abrasive material is propelled, either with a liquid or a gas (typically pressurized air) through a nozzle onto an uneven surface with the intent of evening it out. In order to make wood, walls and other surfaces smooth before the application of paint, sand blasting is being applied. The result will affect the number of ways that this procedure will take, it depends if it will satisfy you or not. Most common is a portable device that is sprayed on a large surface. The operator of the blaster should take extra precautions, he should not work on a confined area and he must wear a personal protective equipment or commonly known as PPE, upon doing this process. Some methods (such as wetblasting, or sand blasting using water) negate the risk of airborne contaminants, but pose another risk in the form of wastewater. Also the use of certain materials, such as silica sand, is recommended to keep risk down. Another method of sand blasting is called containment blasting. In this method, the material to be smoothed is placed in an enclosed area where it is blasted with sand that is then recycled. This gives the advantage of not only reducing the risk of exposure to the operator but also the risk of weather conditions impacting the smoothing process. However, the vacuum blasting is also known to be an alternative. This method not only blasts, but recovers the abrasives both for recycling and for keeping the area clean of contaminants.
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However, whatever method the operator will use, he still needs to do extra precautions and he still needs to follow instructions rigorously and to the latter. This is something that is sometimes ignored in the rush to get a job done and should be reviewed on a regular basis so as not to let safety slack.
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Sand blasting can work wonders in evening out an uneven surface, but poses risks if not done properly. In addition to new methods and ways, operators need to be mindful of the safety hazards and risks posed by improper use of their tools. The operator must be extra careful in handling these safety guidelines since it can cause them both short term and long term diseases, for instance, lung problems in the future. But if done properly it is a great tool to speed up an otherwise time consuming job.