I was originally planning on saving the top skin and placing it back in place once the repair was complete but due to the large bend in the glass, The insurance company is paing for the repair. the section forward of the repair area is vey wet and the balsa is dark and has started to deteriorate. Holes left by drilling may be filled with a mixture of dry saw dust and GIT-ROT or a marine repair epoxy compound. IMO, buying or fixing a boat that needs costly core repair is only worthwhile if one or more of the following apply: - the boat has a legacy; it was your dad's, it was your war Moisture meters can help, but I find simply drilling test Penetration The usual causes of stringer failure are disintegration of the stringer core material, impact damage from slamming and grounding, and fatigue from normal use. The old Bristol yard (which built Bristol Yachts) did the repair which is holding up well 20 years later. However. They use a H100 divinycell core. It is there to increase the thickness of the hull, while trying to keep the weight of the boat to a minimum. Whether its balsa, plywood or some of the foam cores all can eventually absorb water from a leaking deck penetration. by Brian Knight Fixing damaged or delaminated stringers is one of the most common repairs associated with fiberglass boats. For transom repairs, you may drill vertically down through the transom, and then pour in GIT-ROT. What info can you give us on the builder, model, size, condition, etc? For decking, drill thru the surface to treat the wood underneath. You mention "core from the early 80's" which implies a specific boat. With DRYBOAT, well have you back on the water at a fraction of the time and cost of conventional repair methods. It might be a center console, a dual console or a walkaround from the 1970s or 80s. In my last post, I explained how to identify where the core of a fiberglass boat needs repair.When repairing core problems it is important to find the extent of the damage. 2) the wet core was removed and the area prepared for glass ingredients. A leaking deck, especially with wood cores, can lead to core rot and eventually delamination of the deck and loss of structural rigidity. Well come and set up our system to repair your wet coring, stringers, decks, transoms or swim deck. One of these core materials is end grain balsa. I am considering doing additional repair from the inside. This kind of splits the boat in two. GET BACK ON THE WATER! Perfect type of repair for a de-lamination, but misses the point entirely for a rotten/ wet core. If you are comfortable with vacuum bagging, tackle this repair from below, thickened epoxy to bond the new core to the underside of the deck, then DRY YOUR BOAT. A boat repair specialist would use a moisture meter and/or an architectural hammer to assess how wet is the transom and where. Removing the wet core and sanding the bottom fiberglass I spent a good afternoon cleaning up the area by removing the soggy core and sanding the exposed fiberglass skin. Many builders back then used plenty of wood to core the stringers and transoms of their boats, so youll want to find out if the cored material is wet, which compromises the structural integrity of the hull. (one common technique used by boat repairs specialists is the hammer tapping which it consists in closely hearing the echoed sound of the hammer tapping in the area being tested.) When friends on an Allmand 31 asked my husband, Dave, for advice about repairing cracks in the fiberglass near their bow cleats, Dave realized they had a much In most cases it is easy to fix, and hey, you already have the floor out of the way so why not. It won't work, sorry, all you will do is make a bigger mess to fix. Over time, moisture intrusion leads to a rotten core, which in turn makes decks spongy and compromises the integrity of that portion of the boat. There are different core materials used in the production of fiberglass boats.

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