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Old 04-06-2010
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Removing vermiculite in a J/24

What happens if I choose not to remove the vermiculite in a J/24? Is this an option if I don't plan to race? Do very bad things happen making the boat harder to maintain?
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Old 04-06-2010
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Where is the vermiculite and what purpose does it serve? Be aware that vermiculite is often contaminated with asbestos and if you're working with it, proper respirators should be worn to protect yourself.
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Old 04-06-2010
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The vermiculite is under the main cabin sole and aft and also in the keel sump to support the keel bolts. There are many articles and links re: the process of removing the vermiculite in J/24s, but I'm wondering if people remove it because it brings unnecessary added weight for racing, or if it poses some long-term structural integrity problems or other issues.
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Old 04-06-2010
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Well

As all the boats that do serious racing are weighed and have to use corrector weights there is nothing to be gained other than making the boat safe

The bad thing is there is NO bilge in a vermiculite boat compared to a good size one in non-vermiculite boat

The is what WAS used to Stiffen the Hull and keep the keel from flexing the keel sump and cracking

After about hull 1900 it was not used and it was done with more glass and reinforcement

I have seen many J24s with DRY AND SOLID vermiculite and there fine BUT if its Wet and mushy the keel will move around and FAIL at some point



If you have a trailer with jack pads you can lift the boat on it and a bad keel WILL move around by hand
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Last edited by tommays; 04-06-2010 at 01:58 PM.
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Thanks for the info. It was very helpful.
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Old 04-07-2010
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The Mushy Vermiculite Problem
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