The process of blasting is a method of removing coatings, corrosion or substances adhered from different surfaces. Abrasive material is blown against a surface with high force to clean a chosen surface or engine part. Large or small surfaces can be cleaned with this process. Smaller pieces such as furniture or metal parts can be supported in a cabinet; larger surfaces such as buildings and driveways can be blasted by hand held pressure hoses. Technicians wear safety gear that can include eye and ear protection, gloves or special suits.
Two common ways to clean surfaces utilize sand blasting and water blasting. The difference is their use and versatility. Both may be used on a particular project such as a boat, ship or older house. While small machines are generally used for DIY projects, professional companies can handle larger ones such as parking lots.
Sand Blasting
Sandblasting is accomplished on large scale projects such as buildings, ships and cars. Sand is propelled towards a surface with high speed air guns. The technicians wear special protection suits, hearing and eye protection. Paint, oil, grime and other items are removed quickly. It is not generally used on brick walls as the sand can quickly remove old or soft mortar. Some items that benefit from sandblasting are:
•Metal fencing and small painted metal items
•Cars
•Ships
Other abrasives such as coconut shells, steel grit, copper slag and so forth are more commonly used than sand due to the problem of silicosis. This lung disease is caused by breathing sand dust over time. Sandblasting St. Louis is a great way to go if sandblasting will fit your needs.
Water Blasting
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When you point a garden hose at a dirty car, place your thumb over the end to create a high-speed jet and blast dirt off the surface, you are water blasting. Commercial water blasting involves pressurizing water in a tank and directing it at the surface you want to clean. In a fixed building, the water can be reclaimed, cleaned and used again. One of the major advantages for using water is that the pressure can be adjusted for the protection of the surface being cleaned. This allows the user to remove paint from a brick wall without removing the soft mortar. Water can also be directed to places where sand blasting would be impractical such as the interior of a pipe or other small spaces. Water blasting is used for cleaning surfaces such as:
•Parking lots
•Houses and other buildings
•Cars
•Pipes
•Cement slabs and patios
•Boat docks
•Sidewalks
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