Posted for MikeEasley@aol.com:

 Here's what I did and I didn't get any pinholes.
 
 Sand the surface with 80 grit.
 
 Blow it off really well, get the dust out of the pinholes, get down close
 with the air nozzle.
 
 Acetone wipe.
 
 Roll on WLS with no reducer nice and thick, roll back and forth, over and
 over, to work the primer into the weave.
 
 Use a bondo squeegee to "squish" it down into the weave, hold the squeegee
 down really flat to the surface so you don't scrape it off, but push it
 down.
 
 Roll it again to smooth it back out.
 
 Roll on another coat before you start sanding.
 
 Mike Easley
 Colorado Springs


[Bondo squeegees are just ok for this... they're great for spreading small amounts of filler, but their worling edges fray too much to do a good job here.  Better than one of those yellow plastic things is a Thalco squeegee... just google those two words and you'll find dozens of sources that service the snow/surfboard builders.  They are a bit expensive (about $1/inch) and a standard size piece is 24" long, but most places will cut them to size... I recommend a 6 incher for this job.  These are made out a nice white rubber, not real hard, not real soft, but they don't fray and you can wrap your hand around them (the extrusion is about 4" tall and maybe 5/8" thick with a 3/4" chisel taper on both sides of the working edge) so they're much less fatiguing to use.  They have a radiused edge that is very durable and glides over most stuff... the glass/foam guys (EZE, Cozy, etc) have used them for years.  Once you start using one it will become your primary tool for applying large areas of micro as well... try it, you'll like it.     <Marv>          ]