Wet blasting removes coatings, contaminants, corrosion and residues from hard surfaces. It’s like dry blasting, except that the blast media is moistened prior to impacting the surface.
The main advantage of Wet Blasting over dry blasting is that it reduces dust, allowing for work in a wide range of environments with minimal cleanup costs. It results in a cleaner, consistent finish, that is ready for a fresh coat of paint.
Dry Blasting can emit dry sparks charged with static electricity which can lead to explosions in the presence of flammable gases. Wet blasting greatly reduces sparks, but in the unlikely event that sparks do occur, the sparks created are what's called "cold sparks," without static electricity, which minimizes the explosive potential.
Dry Blasting requires a very large amount of containment to maintain airborne dust levels within legal limits. In indoor and urban environments, this type of containment is not practical and not cost-effective to you.
Compared to Dry Blasting, Dustless Blasting will eliminate up to 92% of airborne dust. Fewer harmful particles entering the air makes it much safer if occuring in or around public areas, such as bridges or parks. At the same time, less containment is needed which saves you money on the cleanup and disposal.
Wet blasters can operate effectively at very low PSI, removing coatings without damaging the underlying surface. Wet Blasting is a preferred method for blasting antique, fragile, and soft surfaces, including wood. In addition, lubricating water reduces heat (created by friction) that can warp delicate metal surfaces.