In Philadelphia in 1870, Benjamin Chew Tilghman created a machine that would revolutionize floor removal: the shot blaster. Today, shot blasting is often the first floor removal choice for experienced surface preparation contractors. It is a one-step method for stripping, cleaning and profiling both concrete and steel surfaces. It leaves the surface clean, dry and ready to be recoated or resurfaced.
Shot blasting works by using a centrifugal wheel that propels steel shots at a high velocity in a controlled pattern and direction. As the wheel hits the concrete surface, the outer layers are removed, leaving a smooth surface behind.