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Looking for imperfections on the surface is very exacting.  If you want that
perfect smooth finish without pinholes, use this inspection procedure.

Get a two foot floorescent shop light. When you think your surface is
perfectly smooth, whet the surface with slow drying degreaser or water, put
the light parallel to the wing chord low to the surface in front of you and
examine with your eye level low and look at the reflection area, keeping the
surface wet and observe one square inch at a time.  If done right,  pinholes
will be perceived as a shadow and you can place a small tab of masking tape
near it and continue examining.   after you are done then you can fill the
pinholes, sand and do it again.This is very tediuous work and hard on the
eyes but that is what it takes. Jim Frantz is right, the job never ends what
usually happens is we give up.

Bob Smiley
N94RJ


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Please send your photos and drawings to marvkaye@olsusa.com.
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