Answer to John Buser


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Posted by Bengt Blomberg on November 09, 2000 at 16:39:39:

Hello John,
The one and only way to avoid all risk is to heat at least the under water parts
of the hull for at least 4 hours after curing in the mold.
If that is not possible, all heavy woven roving should be banned
in construction. Only chopped mats or chopped sprayed roving
and eventually 3-shaft or stitched light roving mats
of 300 or max 600 g/square meter should be used.
Most SA hulls I have inspected or repaired have had severely hydrolysis
delaminated heavy cheap 2 shaft woven roving in two or more laminate layers.
Regards Bengt Blomberg


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