May
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Prevent Damage underneath fittings mounted on Fiberglass.

Just recently I ran across an article in a local handout that would seem to help us with our repairs concerning fiberglass.

FIBERGLASS: A simple eyelet installation can result in damage to core materials...

Before you drill into the deck or cabin house to mount new fittings, be sure you know what's beneath the surface and how penetrating it will effect the area. Most people don't know that even a simple eyelet installation can result in damage to core materials. It is important that any penetration into the outer skin of a balsa core/foam deck be back-filled.

Proper installation will prevent rot and weakened structures. To avoid future problems, the following method is advisable before the re-bedding of hardware or the mounting of new hardware. Drill into the area where the fastening is intended to be secured, and dig out a fair amount of the surrounding core with some kind of reefing tool (a bent nail will do in most cases). Back-fill with a cabosil-thickened epoxy, re-drill into the solid putty, and then mount the fastenings with a polyurethane adhesive caulk. When the caulk fails and leaks around the fastenings, the properly constructed plug will prohibit the potential for further water damage.  


Electrical System Review

Charge the battery and check to see if it is holding its charge.
 Reinstall the battery tying it down securely.
 Reinstall instruments (if applicable). Check all electrical functions as soon as possible.
This includes lights, instruments and radios.
 If the mast was un-stepped, check its lights before re-stepping

While the boat is out of the water, check the knotmeter impeller. If it is not spinning
freely, now is the time to replace or repair.

Check all accessible wiring visually for corrosion and cracked sheathing.
Spray on-deck light bulb sockets (running lights) with a moisture dispersent to prevent rust.
 Make sure there are extra fuses on board.

Once the boat is launched, check the calibration of all the instruments and adjust as necessary.


John Lauraitis, Rigging & Equipment

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