Media blasting is a process that involves blasting a surface with small particles of various abrasive materials at a high speed. This process makes changes to the surface and removes dirt and debris while making the surface smoother. Media blasting is used for extremely rough services and to remove paint or rust from a car or building.
Media blasting involves a number of materials, and sand, salt, water, minerals and glass beads can be used for the process. For surfaces that need gentle yet effective cleaning, finely crushed walnut shells or sodium bicarbonate are used. These methods are ideal for some buildings because they don’t give off a harsh scent. In some instances, people use ground fruit, corn dry ice or wheat for media blasting. The blasting has to be done with a machine that is specially designed for cleaning surfaces, and it’s essential to have the right safety gear.
Media blasting is great for getting rid of paint stains that can’t be removed from a building with traditional washing methods. A number of home and business owners use media blasting to get rid of graffiti or other forms of vandalism. The blasting can also take care of engraving on a wall, and can be used to remove unwanted materials from signs or to take off old lettering on commercial buildings.
Media blasting does have its challenges, however. It can be hazardous and the risk include burns if the person doing the media blasting comes in contact with the items while they are coming out of the machine. Toxic dust can also be created by the materials used for media blasting, which is why many people are now using natural materials to get the job done.
Media blasting is best when you use a gentle medium if you’re not sure how a surface will respond. If you don’t know how the media blasting will work, choose the gentlest substance possible. If the first medium doesn’t work, use something that is a little harsher. Walnut shells are often best to start with, or you can use ground corn cob since it is biodegradable and can remove paint from wood that is very soft. Glass beads can also be used as a medium because glass gives the surface a bright and soft finish. You can also recycle the glass beads to be used again up to 30 times. For automobiles, plastic beads are often best, and the beads are often made out of polyester, acrylic, urea and melamine. These materials have a high stripping rate without damaging the car.
Media blasting also involves a considerable amount of cleanup, so if you’re using aluminum oxide, a gentler medium is best for the sandblasting palette. The solution is made of small particles of aluminum oxide and lasts for a long time. Be sure to carefully dispose of the material after you use it. If you’re using media blasting for a few tough job on a stubborn surface, you should use silicon carbide. The process will not take as well and the cost of this medium is lower than other materials.