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Old 16-11-2015, 00:43   #1
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smile repair

After discovering that the lead-keel stub seam has opened on my Pearson 36-1, I learned that this "smile" is common to boats that have this type of construction. Some models of Pearsons have this smile and I have heard that some Catalinas also have this opening of the joint between the lead and the stub.

Originally, I wanted to drop the lead and rebed it, but due to the inaccessility of several nuts on the keel bolts, compounded by the fact that someone poured resin into the bilge, filling the keel bolt holes in the bilge and filling the joint between the lead and the stub, I have decided that even without the nuts, the keel isn't going to fall off.

Now I am searching for the best technique for sealing this smile and keeping it watertight.

Next I will visit the Catalina users site...
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Old 16-11-2015, 05:53   #2
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Re: smile repair

See ➥ Keel to Hull Joint Repair

Open up the joint a bit with a Dremel tool or metal cutting saw blade to expose bright metal and fiberglass laminate. Once the crack is cleaned and widened, dispense WEST SYSTEMS G/flex 655 Resin and Hardener in equal lines on a plastic sheet (or 1.2:1 by weight) and mix by folding it over itself. Then begin applying it into the crack. The pot life of G/flex is 45 minutes, so unless a huge batch is mixed, there should be enough time to dispense it, although mixing multiple batches would give even more time. This combination has 32% elongation before breaking which helps to prevent cracks from reappearing on the joint. It can then be wet-sanded, dried and painted for a lasting repair.
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Old 16-11-2015, 06:20   #3
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Re: smile repair

Thanks Gordon,

All my advisors are suggesting G-Flex. I have used it in other applications, like bonding HDPE to fiberglass. I will use it for this application of closing the smile.

Would you suggest a filler to mix with the epoxy? I think collodial silica will just be too brittle.
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Old 16-11-2015, 07:26   #4
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Re: smile repair

G/flex 655 Adhesive is Pre-thickened.
G/flex 650 might be thickened with 406 Colloidal Silica to a mayonnaise consistency) in this application.
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