Answer to Bert Meadley


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Posted by Bengt Blomberg on February 16, 2001 at 14:38:09:

Hello Bert,
Actually, if there is not an extreme temperature difference
between the warmer inside of the hull and the cold sea water,
the moisture passes from outside inwards. Water in the bilge
has a cooling effect which increases the inward moisture movement.
Further, as you can find in the web site book, it is not the moisture
that causes the hydrolysis problem. Instead it is the hydrolysis
which creates the voids, delaminations and capillaries which allows
the laminate to absorb and HOLD a larger than normal amount of moisture.
When all the voids are filled, moisture starts to evaporate from the
inside again.
The only way to stop the problem is to remove the true causes for the
hydrolysis, which unfortunately is a difficult task.
Regards Bengt


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