sandblasting

[myron21]

how long does it usually take to sandblast an area of roughly 200m2? A firm have been engaged in this process at my workplace for the past 4 weeks, I have a suspicion that they spend most of the day just blowing compressed air at the bricks. Any indication of normal duration times would be gratefully received.

[Loosehead]

is it 200 square metres or 200 metres square? if the former I would say they are taking much too long.

[baileys]

thats not far off an hour per square metre,pretty much on the slow side if you ask me