Advantages of Wet Blasting

Cleans by flow of water and abrasive running across the part surface not by sheer force and impact like in conventional dry blasting operations.
Water acts as a lubricant or barrier between the abrasive media & components surface protecting the substrate from erosion and distortion normally found in dry blasting environments.
Wet blasting can provide a slight surface peening depending on the abrasive media used helping make the substrate harder and more stain resistant ideal in restoration applications.
One of the clear advantages in the wet slurry process is the fact that no media is impregnated into a softer substrate like aluminum, brass and bronze.
No heat warping with thin parts with the impact protection of the water as a barrier. When part distortion and close tolerances are of concern wet blasting is a great option for processing and testing your parts.
Leaves a very attractive satin finish on many different substrates like stainless steel, aluminum, brass.
Provides an excellent lightly etched surface for bonding within the specialty coating markets. While helping retain part form and function.
Provides an excellent surface for plating by cleaning the topography of the surface. With the flushing action of combined water and abrasive allows optimal surface cleanliness and preparation for final plating operations.

Wet blasting is a less aggressive form of blasting in comparison to dry blasting, working just as effectively. The ricochet of media is reduced due to the cushioning effect created from the water acting as a lubricant between the media and the component surface. As a result, the angle of the media is changed, producing a lapping effect travelling across the surface, resulting in an even satin/ polished finish.

The illustrations below show the different processes of grit, bead and wetblasting:

Unlike dry blasting where the finish is produced by sheer force of media impact, wetblasting does not allow for media to be impregnated into the component,