Media blasting is a process in which abrasive media gets shot through a nozzle with pressurized air at a substrate or material. The force of the impact of that abrasive media against the blasted surface makes it easier to strip rust, paint, blemishes and finishes from the surface. It’s very similar to pressure washing, but rather than using water, it uses small abrasive particles.
There are many different kinds of media blasting, which see different uses in commercial and industrial applications. The process might be used for paint stripping or restoration of corroded surfaces, or it could be used to remove graffiti from a public space. The wide range of blasting pressures allows for media blasting to be used on all kinds of surfaces, from softer surfaces like wood or plastic to harder surfaces like metal or concrete.
Perhaps the most well-known type of media blasting is sandblasting, which uses silica sand as the abrasive material during the blasting process. There are some people who mistakenly use the word “sandblasting” to refer to all types of media blasting, but there are some important differences between different media and how they are used.
“Media blasting” can refer to a wide range of methods of using abrasive material and pressurized air to restore or clean a surface. Hydro blasting is one category of media blasting that features a mixture of water and blasting media to reduce the amount of dust that might be created by other types of abrasive media blasting, such as sandblasting.
Blasting media explained
Whenever you’re preparing to take on a job such as rust or graffiti removal or any other kind of surface restoration project, it’s important you choose the proper media for the task ahead of you. The blasting media you select will depend on the kind of surface you’re working with, as well as the specific results you seek.
If you’re going to be stripping paint from a steel surface, for example, you’ll need something heavier duty than if you’re going to be stripping old, antique wooden surfaces.
The most common media used for blasting include plastic or glass beads, silica sand, ground walnut shells, crushed glass and steel grit. Every one of these forms of media has its own hardness, density and shape, and each comes in a wide range of particle sizes to customize your results.
The equipment used for blasting this media will also vary. You can find handheld cabinets and heavy-duty systems with automatic blasting controls, or other options that allow you to have a more intricate, customized solution to your application. In addition to selecting the proper blasting media, you will also need to make sure you’ve got the proper settings on your equipment so you’re not blasting too hard at the surface you’re working on.
For more information about the different forms of media blasting and which blasting media will be the best for your upcoming project, we encourage you to contact Great Western Painting today. We look forward to working with you soon.