: Hi All

: Well, the conversation below on floatation has me re-thinking my idea on
: floating my Walrus. Just thought I'd run it by anyway.

: I was thinking of useing the spray canned, expanding foam. It comes in two
: different types. A low expansion type, around 2:1 I'm told. Then there is
: a much higher expansion type. Amount unkown. I was thinking that when I
: have the hull covered, I could put some plastic or possibly masonite,
: waxed, into the bow and stern to form a mold the approximate shape of the
: empty cavity. Then, spray the low volume style around on the forms and
: forming a compartment. Letting that dry and removeing it from the forms,
: spraying ( a little at a time of the high volume foam into that and
: letting it fill. When done expanding to fill the form, then fit it back
: into the bow and/or stern cavity and use a little of the low volume foam
: sprayed between the block and the inner sides of the frame to glue it in.
: That way, it wouldn't interfere with the skin, causeing any bulges or
: stretching, or expand the frame out of shape in any way. Thought this
: might be a way to add floatation since there are no bulkheads,
: compartments or hatches to contend with. The Walrus is just a
: play/learning boat till my Great Auk gets done next spring.

: So, what are my choices? Same as below ?

: Rehd

Rehd,

I’ve had a similar idea rolling around in my head. I was going to use my canvas bags to make float bags filled with expanding foam. The outside of the bags would be waterproofed.

I’ll probably just buy some float bags though.

Roger