[Jacques Reed]

Regarding the discussion on wet soda blasting steel here is something I came across in my seagoing days which may be of interest and use.

It is called wet blast inhibitor and we used it onboard to prevent the flashing off to rust on bare steel that we water blasted with a copper slag grit medium. It allowed the crew to blast for the full day then let the steel dry before priming the next day without the formation of rust overnight on the surface of the bare steel.

I still use it on my project today, as even when bare steel parts comes out of the molasses tank it will still rapidly get a light patina of rust on it in all but the driest weather conditions. By dunking it in tank of water with a very small amount of this chemical added, the part stays free of rust and can be painted the next day or even a few days later if kept in a dry location. Larger parts I spray after coming out of the tank with a solution of this chemical using a simple garden sprayer.

Cheers,