Re: Sand Blasting
I like to start with the air all the way down, when I start turning the pressure up, at first I just get air out of the gun, and then as I go higher, the media starts coming out. Start there, and see if it is enough pressure to clean the metal. I do a lot of blasting at 40-50 PSI. But you may not be able to get the coating off with this low pressure, it depends what's on the metal.
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