The latter process may be grinding ( abrasive cutting ), polishing, lapping, abrasive blasting, milling, lithography, industrial etching / chemical milling, laser texturing, or other processes.
22.
No abrasive blasting or acid etching of the visible exterior concrete was used to smooth the appearance of the structure, as Breuer and Beckhard believed concrete casting techniques had advanced sufficiently to no longer require it.
23.
From readings that I have done as well as speaking with applicators it seems one first uses an abrasive blasting procedure and then one can ALSO use a chemical treatment ( phosphating ) for added pretreatment before applying the powder.
24.
Often abrasive blasting of the frame is the most expeditious method of cleaning, but it may still leave microscopic rust pitting behind, so should be followed up with a phosphoric acid'rust killer'solution, before priming.
25.
"' Abrasive blasting "'is the operation of forcibly propelling a stream of abrasive material against a surface under high pressure to smooth a centrifugal wheel is used to propel the blasting material ( often called the " media " ).
