What is Sandblasting?
Sandblasting is the act of using a device to propel sand, or another abrasive material, toward a surface in need of stripping. It is used to completely take off and smooth the top layer of a surface. Surface muck such as the following can be removed by sand blasting:
How Wet Sandblasting Works
Most sandblasters use compressed air to force the particles toward a surface. Wet sandblating uses water, as the name implies. Essentially, it's a pressure washer that also has grit mixed in with the water. This device is used for really tough jobs that need an entire surface layer removed.
The amount of dust created when sandblasting is an headache. Wet sandblasting does not have this disadvantage. Plus, solvents and detergents can also be mixed into the slurry to provide a more effective cleaning solution for certain jobs. The fact that water is used instead of air provides a cushion when blasting a surface. Static is not built-up between the particulate and the surface, therefore whatever is being blasted will end up being very clean.