Re: Foam in between inner and outer hull 23' Inboard
Think twice and then several more times before putting foam in any boat, especially a Seacraft. It is possible to do it right and possible to do it very very wrong and screw up your boat. Further, foam attacts problems down the road that are hard to fix. In a seacraft, you don't need it. Assuming the decks and transom are solid, the flex you see is a non-issue. If you drill holes in a seacraft hull, you will find some places with a lot of glass and others where the hull is quite thin. Moesley was a genius at putting glass where it was needed and not otherwise. Potter followed his lead quite well. My old 20 ft seafari had a places in the bottom which were quite thin, just like a 25 Bertram (I've cut transducer holes in both). Both boats were tanks that would handle far more abuse than I could dish out. I just cut a bildge pump discharge in my 25 seafari back near the transum. The hull at that point is less than 1/4 inch thick. The boat is 37 years old and you have to look very hard to find any stress cracks in the gel coat.
Make sure your decks are solid and don't worry about it.
Connor
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