Aluminium Boat Plans
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What’s a good buyoancy agent to make my Boat unsinkable?
I am building an aluminium planing boat for commuting purposes on the Otago Harbour (NZ), 4 metres in length, 39 horsepower, full cabin, two occupants.
I want to make this boat unsinkable, and I have plenty of unused space, which I plan to encapsulate in aluminium sheet metal and fill up with a buoyancy agent.
Most boat builders use foam. But I’m afraid that’ll shrink over the years. I want to use something more durable. But I cannot find anything worth buying – am I down to pingpong balls now?
Would love to hear some tips if you have any. Thanks.
use a two part foam. It will fill in all the voids of the hull when you pour it in. It will not shrink. However one thing you should remember. If you get a crack in the hull that you need to weld you will not be able to weld it because you may set the foam on fire. The best thing to do with metal construction is to build in watertight compartments. Good luck Cap.
CNC Marine – Plate Aluminium Kit Boat
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