[Paddlewise] water absorption in composite layups

I recently got a slightly used  kevlar/carbon kayak. I just noticed that 
the inside of the cockpit (floor, sidewalls, even the underside of the 
deck) picked up a milky, white appearance since the last time I used the 
boat, 2 days ago. When I put the boat away 2 days ago, I took everything 
out, and wiped the boat out with a sponge like I always do. I also left the 
boat in my garage, uncovered (no cockpit cover).

When I stored the boat this milky appearance wasn't there. It has been very 
humid the last couple of days.

I figured it must have absorbed moisture from the air, and so I held a hair 
dryer on it for a minute or so and the milky appearance went away, and the 
glossy black carbon appearance came back. Although there are some scratches 
on the bottom of the hull from the previous owner, none of them appear to 
be through the gelcoat, so I don't think water was taken up through the 
bottom of the boat.

Is it possible for the boat to absorb moisture from the air, and would this 
cause a milky appearance? The resin used is vinylester. Is there any cause 
for concern? Any insights will be greatly appreciated.
***************************************************************************
PaddleWise Paddling Mailing List - Any opinions or suggestions expressed
here are solely those of the writer(s). You must assume the entire
responsibility for reliance upon them. All postings copyright the author.
Submissions:     PaddleWise_at_PaddleWise.net
Subscriptions:   PaddleWise-request_at_PaddleWise.net
Website:         http://www.paddlewise.net/
***************************************************************************