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I need some help.
I fabricated my sandblast pot, got some glass bead #12 (140/230) then started sandblasting my piece. The glass went through the pot fine on the first round, but after I refilled my pot with the previously used glass and tried to use it again I started running into problems where the sand acted either stuck or the air would just burrow a hole through the sand and all I would get out of my gun was air.
I think the problem is the humidity here. Our RH is 60-70% so I think this is moisening the sand enough to where the glass is clumping together. And because I am using such a fine grit for it to clump or try to stay together in one big mass it would not take much moisture.
I have a air/water separator on the output of my compressor. I am using a 7/64" nozzle. The nozzle size and glass bead grit size was chosen because I have a small compressor and I don't want to go out and purchase another compressor.
This is the first time I am sandblasting anything so all help would be greatly appreciated.
I fabricated my sandblast pot, got some glass bead #12 (140/230) then started sandblasting my piece. The glass went through the pot fine on the first round, but after I refilled my pot with the previously used glass and tried to use it again I started running into problems where the sand acted either stuck or the air would just burrow a hole through the sand and all I would get out of my gun was air.
I think the problem is the humidity here. Our RH is 60-70% so I think this is moisening the sand enough to where the glass is clumping together. And because I am using such a fine grit for it to clump or try to stay together in one big mass it would not take much moisture.
I have a air/water separator on the output of my compressor. I am using a 7/64" nozzle. The nozzle size and glass bead grit size was chosen because I have a small compressor and I don't want to go out and purchase another compressor.
This is the first time I am sandblasting anything so all help would be greatly appreciated.
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