Frogwatch wrote:
Say you want to drive the moisture out of gelcoat. I've used a heat
gun to do it and was surprised at how much water came out.
So, what would a high power microwave unit do? Water absorbs the
microwaves much better than the polyester so it would get hot and come
out. This would avoid the months of waiting for a hull to dry if you
are repairing blisters (a real scam as blisters are not a real
problem).

A few years ago there was a system developed in Europe that used a
combination of heat and vacuum to dry out laminates.

I see it is now available in the USA.

Take a look at:

http://www.hotvac.com/testimonial/default.aspx

Brian C