Dale - What you probably saw was so-called thermal curing of the epoxy. This happens when the cured epoxy gets heated to around 120 - 130 degrees. It shrinks some, causing the weave of the cloth to print through. The effect is quite noticeable on new boats after their initial trip in the hot summer sun. A few weeks ago, I took my latest boat out of the shop into the bright sun for a few pictures. The total time in the sun was less than a half hour. When I brought it back inside the shop, I noticed the weave bumps. On a finished boat, wet sanding and a couple more coats of varnish fixes the problem. I have heard more than a few times that some professional builders purposely heat their newly epoxied hulls to cause the thermal curing, even before sanding. The finished boat then doesn't get the problem. I have never seen a good reference to the procedure, though. Also have been thinking of trying to do it on my next boat.

You don't have to sand the glass off. Just sand the epoxy fair before varnishing, although you may still get it on the rest of the boat.

Hope that explains it......

John
: Today I put some scraps of carpet in the bottom of a bucket, filled the
: bucket with warm water, stood my kayak on it's end inside the bucket of
: water and did the end pours. I noticed that the cloth on the outside along
: the seam and even in the cloth on the hull has a bunch of these dots in a
: small area now that the end pours are done. When the end pours fully cure
: I'll just sand it off and lay up some new cloth so it's not really a
: problem. What I'm trying to figure out is where the compression load came
: from. Is it just the fact that the kayak was on it's end? That's all I can
: think of how it would have happened. This happened to a real small amount
: on my triple also.

: I would think that if the heat of the end pour curing expanded it would put
: the cloth in tension and would not cause this problem. Any ideas?