What is sandblasting?
How does it work?
Cleaning by sandblasting involves subjecting a surface to the
effects of different grades of sand or buckshot (small shot). The most
common goal is to remove paint, rust or scale, but it is sometimes used
to obtain a smooth and even surface to be treated. A typical device is
composed of an air blasting compressor connected to a high pressure
container (where the small shot or sand is introduced) and a long
projection downpipe connected to a sand lance. Objects that can be
cleaned by "Service Preparation" are made of wood, stone and brick walls
up to the aluminum, iron and steel.
It is simply a matter of choosing the material at the correct pressure for the task. Eg for cleaning wood or stone we will use a low pressure with the finest sand available, for iron or steel it would be cleaned with high pressure and shot tempered steel 2.5 year mm, if required. Once cleaned it is advisable to coat the untreated surfaces with primer to stop rust and corrosion.
