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On 19 Dec 2002 at 15:53, Westfalia wrote: > Almost no dryer will get rid of the amount of water an undersized > compressor working triple time will produce. There is a reason large > capacity cast iron two stage compressors are used. They have to run > less often and therefor run cooler, which means less condensation in the > compressed air. The water in the compressed air depends only on the humidity of the air that you take in to compress it and the pressure you compress it to. The water condenses out of the compressed air because it is less soluble in the compressed version and it comes out more as the compressed air cools down. None of this is made any better by using a different kind of compressor. >Think CFM and not just PSI. Most large volume blasters > use HVLP blasting to help keep the heat down on the work piece. CFM is certainly important, and often overlooked. I'm familiar with HVLP paint spraying, but I didn't think that it worked for blasting. Are you sure about this? > I hope that your lungs justify the use of a NIOSH approved respirator > while you are using silica sand! Good advice. -- ******************************* Jim Adney, jadney@vwtype3.org Madison, Wisconsin, USA ******************************* ------------------------------------------------ To unsubscribe, E-mail to: <type3-off@vwtype3.org> For more help, see http://vwtype3.org/list/