Sandblasting is a surface finishing process involving the use of a powered machine (typically an air compressor or a sandblasting machine) to spray abrasive particles under high pressure against a surface.
The reason it is called sandblasting is that it blasts the surface with particles of sand. When the sand particles strike the surface, they create smoother and a more even texture.
What is sandblasting?
Sand blasting (sometimes referred to as abrasive blasting) leverages the abrasive properties of sand, creating smoother surfaces with fewer physical imperfections and flaws.
It is no secret that sand is rough and gritty and this is why it is able to wear away at excess or unwanted material on a surface.
The first step to performing sand blasting is pouring sand into the machine through a chamber on top. The machine is then connected to a conventional air compressor, that, when activated, propels the sand out through a handheld nozzle. Depending on its settings, the pressure of the sand can be anywhere from 50 to 130 pounds PSI (per square inch).
The sand is blasted across the surface, and due to its abrasive properties, the sand is able to create a smoother surface. For example, concrete is often sandblasted after it has been poured and allowed to dry. This process removes excess materials on the concrete, which makes it smoother.
What are the benefits?
Sandblasting offers a number of advantages over other surface cleaning and treatment processes
This is an easy and quick process when the correct precautions are taken. It is ideal for a wide range of applications and industries to remove unwanted deposits, clean surfaces, or alter the shape or properties of a surface.
The history of abrasive blasting
The first abrasive blasting was in 1870 by Benjamin Chew Tilghman, with the idea said to have originated from observing nature's natural pattern of erosion via running water and wind-blown sand. The first abrasive material used was sand, but it was discovered that inhaling the silica particles led to silicosis; which is a serious respiratory disease.
By 1893, the air processor made the industrial use of sandblasting possible and by 1904 Thomas Panghorn added compressed air to Tilghman's design which created a metal-cleaning sand blasting machine.
In 1918 the very first sand blasting enclosure was constructed, with a window to view the blasted object with a barrier put between the workers and the dust particles to ensure they did not inhale them as easily. Exhaust fans were also incorporated during this time.
By 1939 different abrasive media types were introduced, with many still being used today.
How is it different to shot blasting?
Shot blasting is another effective method of smoothing otherwise rough and rigid surfaces. Small metal balls or beads made of stainless steel, copper, aluminium or zinc are propelled against a surface. These metals are much harder than sand and thus used on even tougher surfaces.
Book your sandblasting service from D Price and Sons
If you are looking to thoroughly clean a surface, book D Price & Son's sand blasting service today.
Based in Longton, Stoke on Trent, we are also the premium supplier of high-quality coal, logs and gas for customers across Staffordshire and the surrounding areas.
Contact us now for a quote for our sand blasting service.