Introduction with questions....water in battery and oil compartments

[peiserma]

This refers to how the part in question was built. Generically, it refers to a layer of fiberglass, the core material in the middle, then another layer of fiberglass. The layers of fiberglass are often called the inner skin and outer skin. The core may be foam or wood, there are hundreds of different materials used for the core. Cored construction is used to add strength/rigidity without as much weight (compared to using all fiberglass). When water gets into the core material, the condition is known as a saturated core.

The transom on the V20 is a cored construction. The deck isn't a true cored construction since there is only a top layer of fiberglass (I am pretty sure that is a true statement, but I am going to find out on mine pretty soon). However, you don't hear the term saturated core used with transoms very often. Usually a saturated core on a transom is called "rotted transom". The term saturated core is commonly used with the deck, even if its not a true core construction. Another common place to find cored construction is on the deck above cabins. And lots of sailboats have a cored hull. Don't know if the hull on a V20 is cored.