Floatation Material I Need To Find A Floatation Substance For A 14 Foot Boat I Am Redoing. Like A Blow In Insulation.?

I need to find a floatation substance for a 14 foot boat I am redoing. Like a blow in insulation.? - floatation material

I tore up the earth and all equipment was soaked foam flotation. And must be replaced before a new floor in the Tri-fiberblass fuselage. All suggestions of the foam to be great, or put a new floor in fiberglass case. I thought the foam in a can, but need a few hundred cans get to work, is not very profitable. The substance would be wrong, but, I think.