> It is cheaper to use plaster of paris than a second shot of the expanding
> foam if you want to make a plug from your foamed mold. The plaster of
> paris sets up in about 1/2 hour, and though it is damp, you can work it

> The advantage of working with the original foam mold and covering that
> with fiberglass is that if you do the mold making IN your cockpit the top
> will mold to match your butt, and the bottom will mold to match the curve
> of the hull at the point you want to install this seat. Your 'glassed
> product will be a good fit. On theother hand, if you use your molded foam
> to create a plug in the shape of your butt, then you will have to add
> sides to this plug to shape the extra fiberglass you'll need for turning
> that plug into a seat.

Paul,

I think that what you're saying makes the most sense to achieve something in reality. (however the idea is that the second mould is from the first, so the side situation should be similar and also not result in a seat proud of the boat cockpit - it may fit the lines better? In other words, you would do the same work on the 1st as before and just make a 2nd from that.) (This is purely conjecture and may be optimistic in practice)

Would you make the plaster thin w/ cloth as part of the composite? Would it stick for a while to a foam armature? What other totally light weight but fine fillers are there?

But I love your Chicago Swimsuit idea. What's the G. in your name for - Gunner?

-mick