>My problem was that I put a micro on to fill in gaps on the foam and 
>then tried to sand them smooth with the foam and then I was hitting 
>the foam and just making things worse and worse.
>  -Kurt
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You can't sand anything next to the foam without messing up the 
foam.  If you have small voids near the edge it's best to leave them 
a bit depressed when filling with micro or at least squeegee them 
smooth before the micro sets up.  Do the final fill with micro when 
doing the glass lay up and squeegee the spot smooth.  Any glue at the 
edges or on a glue line that sticks up above the foam should be cut 
back to the edge or a "V" notch on a glue line using a razor blade or 
similar tool.  It will only take one attempt at sanding he glue down 
to learn the lesson.  If you have an area that needs significant 
attention, cut out the foam, insert a new block, and start over.

The hard shelling worked great for me but do a couple of small test 
blocks for yourself before applying the process to your 
project.  Compare the couple of processes and see how they work for 
you.  Six inch squares are large enough for a test.  Hard shell one 
block and do the other with the seal and glass at the same time 
process.  Go the route that you feel comfortable with.

Larry Flesner

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