Your use of a light to spot voids is interesting.

It works for thin plywood.
Someone repeated here what he read in a book of a boatbuilder noticing a void
from the way dew settled on the hull overnight.

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Your use of a light to spot voids is interesting.

That's standard procedure among people who use Lauan for boat building.
It's more or less a necessity, due to the prevalence of voids in the
material.

That's nice to read. I first reported my discovery of the technique in
this here newsgroup back in late 1999 when building my first boat
(Dogskiff) out of the cheap plywood. :)



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Da$^$%# Luan and Garbage Glue
 

I can't find lauan underlayment locally any more. They sell meranti,
which
is better quality with no surface checks or edge voids,

Meranti and lauan are two different names for the same wood. The
former if it comes from Malaysia and the latter if it comes from the
Philippines.

Mike


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