[Public-List] foredeck compression, (and bedding deck hardware)
fongemie at gmail.com
Wed Jan 19 13:43:20 PST 2011
Whenever I've been boat shopping, I've always been shocked at the amount of
fiberglass boats that have core-rot. Not uncommon in the least, and not all
these boats had neglectful owners either. I'm of the opinion that simply
relying on your choice of "goop" to keep your deck core dry is too risky,
considering how easy it is to eopxy the holes, and how difficult a job it is
to repair a rotten deck.
On Wed, Jan 19, 2011 at 3:22 PM, Jim Davis <a30240 at earthlink.net> wrote:
> When this topic comes up it is important to remember what you have for a
> core. If it is balsa or foam opening the core at each hole and filling with
> thickened epoxy is wise and some what easy. You can use a bent nail to tear
> out enough balsa/foam between the deck and liner to make a good, solid epoxy
> column. The principle advantage to doing this is to prevent the core from
> being crushed and weakening the fitting's attachment. That it reduces the
> chance of water intrusion is an additional benefit.
> With masonite, or other hardwood, it really isn't necessary as long as the
> holes are sealed and the hardware is properly bedded. For plywood I would
> be inclined to treat it as balsa, or at least fill the holes with slightly
> thinned slow cure epoxy and redrill after it cooks. The crush resistance of
> the older (masonite) deck is high enough to not be an area of concern. The
> only technique I can think of is to grossly over bore the holes from the top
> and not penetrate the inner liner. Then fill the hole and re drill after
> the epoxy has cured. I can think of a lot of other projects that are higher
> on the pecking order.
> Jim Davis
> S/V Isa Lei
> CT 35
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