1/8 scale hydro hull

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Bill Mattern

Well-Known Member
Joined
Sep 18, 2019
Messages
58
Getting ready to join 2 pc fiberglass hydro hull. Should I fill sponsons and other parts of Hull with foam?
 
I would fill at least the sponsons, but not with expanding foam. I'd fill the sponsons with the blue or pink insulation foam or pool noodle pieces that's been coated with some sort of sealant to prevent fuel and water from soaking into the foam
 
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don't use self expanding foam as in summer the foam reaction will kick in again due the the heat and will distort your pride and joy ....... i learnt that one the hard way
 
don't use self expanding foam as in summer the foam reaction will kick in again due the the heat and will distort your pride and joy ....... i learnt that one the hard way
I've seen more than one boat split at the seams due to that stuff, hence my comment to use the blue or pink insulation foam
 
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