[flatheadmurre]

Downside to wetblasting is you can´t sweep the media into a pile and shovel it back into the blasting pot...
So you need media enough for the entire job can´t reuse any until it has dried completely.
Otherwise you have the cooling effect that is great on sheetmetal.
You can spray on rust inhibitor to prevent flash rust....gives you a couple of weeks to prep and primer.