Wally wrote:
My boat (Foxcub 18) has some leaks in the topsides, where the shrouds come
down to the deck. The shrouds attach to U-bolts which pass through the edge
of the deck to a blind fixing inside. After messing about with a hose, it
appears that water is getting through between the U-bolts and GRP.

Since the fixings don't seem to be removable, I'm thinking of sealing them
from above, using some sort of mastic or highly-flexible sealant, perhaps
squeezed in with a syringe. What would be a good material to use? Any other
way of fixing the problem?

Squeezing in miracle goop from above is doubtful. Is there any way of
taking the nuts & backing plates off the underside? That way you could
clean out all the old goop... somebody is sure to have squeezed some in
from above, at some point in the past... maybe it even worked for a
while... and start fresh. Lately I've been using 3M 4200 UV-resistant.
Works well on everything I've rebedded so far.

Fresh Breezes- Doug King