The common word for abrasive blasting: firing grit through a nozzle with compressed air to strip rust, scale and old coating and cut an anchor profile. Silica sand itself is banned or tightly restricted for open blasting in many jurisdictions because of silicosis, so crews run slag, garnet, steel grit or other media while still calling the job sandblasting. Specs and inspectors write abrasive blast cleaning.
Sandblasting starts on the tank Monday, but it's garnet, nobody runs silica on this job.
Also heard as
- blasting
- abrasive blasting
- sandblast
Related terms
Black beauty
Genericized name for black coal slag abrasive used in open blasting of steel.
Blast pot
Pressurized tank that meters abrasive into the air stream for blasting, controlled from the nozzle.
Anchor profile
Peak-to-valley roughness that blasting cuts into steel so a coating can grip, given in mils or microns.
Near-white blast
Blast grade allowing light shadows or stains on no more than 5 percent of the surface, the usual immersion standard.