If you do a search, I think you will find this subject has been discussed in several threads, but to answer your question: If you are serious about sandblasting wood signs you need something that will run about a 1/4" blast nozzle. That takes somewhere around a 105 cfm construction type air compressor similar to what you would use to run a jackhammer.
-------------------- Jerry Mathel Retired Grants Pass, Oregon signs@grantspass.com Posts: 916 | From: Grants Pass, OR USA | Registered: Dec 1998
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We just got a 7.5 HP Two-Stage 80 gallon at Home Depot. It runs 27.5 cfm at 90 PSI (I think). It works just fine for HDU signs. I haven't tried any wood signs yet.
I should also mention that you will need a decent sized pressure pot. We have a 80-90 lb. capacity purchased from www.sanblast.com
-------------------- Amy Brown Life Skills 101 Private Address Posts: 3502 | From: Lake Helen, FL, USA | Registered: Feb 2001
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