Jeff:
When I shopped around for media I found a very knowledgeable guy at an
industrial abrasive supply here in the Seattle area. He convinced me that
sand (a #80 western garnet) would be best in my benchtop machine rather than
glass bead.
Unless you have an industrual quality compressor (I don't either; a 125 PSI,
4 hp unit) that will maintain a consistent pressure you have to sacrifice
time in favor of technique. Paint, I believe, will just take longer than
rust or corrosion to remove. The instructions that came with my machine
recommend a circular motion with the blasting tip. It works for me. Watch
for pitting.
Best regards,
Walt Fogle
'73 Spitfire 1500
Jeff wrote:
>
>Hello all,
>
>Got my bead blasting cabinet setup last evening and went to work on my
>springs, rear drum covers and some other stuff. I was surprised at how
>slow
>things seemed to be going. Through trial and error, I found that I
>received
>the best performance by using short bursts of high pressurized air, rather
>than just keeping my finger on the trigger. I'm not able to remove old
>paint as easily as I assumed I would. Any suggestions for increasing the
>performance would be appreciated. Would a smaller venturi aperature work
>better for stripping off paint? I'm afraid I'm not very knowledgable about
>the role of the ceramic tips, either. Thanks in advance.
>
>Jeff in San Diego
>'67 RHD Spitfire Mk3
>http://www.ohms.com/spitfire/spitfire.shtml
>
>
>
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