In the past, sandblasting was perce...

In the past, sandblasting was perceived as an effective means of cleaning brick and masonry facades. in such a manner prevalent was sandblasting, in fact, that unruffled laymen were familiar with the technique.
However, it has become apparent that sandblasting and many other abrasive cleaning techniques are far from the cure-alls they were one time thought to be. Indeed, those well-schooled in the restoration and preservation of older buildings are keenly aware of the potentially damaging efficiencys of sandblasting and abrasive cleaning and usually intrust with an agency such techniques only as a last resort.