Pressurized tank, sometimes called a blast pot, that holds abrasive and meters it into a stream of compressed air through a mixing valve. Pressure pots blast faster and harder than suction cabinets and are used for large parts and field work. Wet air in the pot makes grit clump and surge, so a moisture separator or dryer upstream is standard.
Heard on the job
Pot's surging again, there's water in the grit, drain the separator before you open it up.
Also heard as
- blast pot
- pressure pot
- blast tank
Related terms
Grit blasting
Blasting a surface with angular abrasive to clean it and roughen it so the coating can grip.
Anchor profile
The peak-and-valley roughness grit blasting leaves on a surface, which the coating locks onto.
Embedded grit
Abrasive particles left stuck in the substrate after blasting, visible at the bond line in a cross section.