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Senior Member
Re: Joe Ruscito's Kitfox S7 Build
I didn’t see part numbers but I’ll look tomorrow.
Here’s another one. Scotch bright 7447 is the go to for sanding wing spars. The manual even states this is because other sand paper commonly has aluminum oxide abrasive and 7447 does not. But from the 3m website 7447 is made from fine grade aulininun oxide....
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