The techniques used by Kinnaird include copper-wheel engraving, cutting, sandblasting, acid etching and casting.
Due to acid etching, fractures would not close completely and therefore productivity was enhanced.
Acids dissolve the limestone, revealing the microfossils in a recovery process called "acid etching".
After repairs are made the surface is prepped with an acid etching, some new refinishing processes do not require the use of etching.
Areas of hidden tones were exposed by sandblasting and acid etching.
These bands can be highlighted for cosmetic purposes by proper polishing or acid etching.
However, acid etching did not work on the hydrofluoric acid resistant Al 2 O 3 copings.
By about AD 1000, the Hohokam are credited with being the first culture to master acid etching.
This finish is mostly used with black acid etching.
Mr. Levene's corrosive guitar eats into this environment's textured contours like an acid etching.