We went over to wet blast when I worked offshore, When I started it was dry blast and you cleaned it up for years, it got everywhere . With dry blast they blasted the old paint off for a day, next morning the blasted area would be ginger. they would reblast, a very quick job compared to removing paint etc and if conditions were right, by lunchtime would be applying high build primer with airless spray. That was after steel & air temperature checks plus humidity/dew point. When they changed to wet the biggest problem was the amount of fresh water they used, we had plenty of air for them to compress but they had to bring their own water. With the wet they also had a different paint system that was tolerant to the moisture.