I have two projects underway One is an older boat needing a new cockpit sole the other in a fresh out of the mold 23 cc. I am looking for thoughts on using a material called coosa, ( spelling) vs core cel style foam,,, the 23 cc may become a surface I will pull a mold from,
I've worked with coosa board and it is a great replacement for plywood (if you don't mind spending the money), using the bluewater 26 I would simply match the thickness of the plywood you are replacing. I believe nidacore would possibly be a better choice for compressive and bending loads such as a deck where coosa is perfect for compressive and tensile loads within the plane of the board's orientation. That said I have never worked with nidacore, and coosa does recommend their product for decking.
As far as pulling a mold off of your brand spanking new deck, it is certainly doable and experienced glassmen do it but if you aren't experienced with making fiberglass parts with molds and working with mold release agents I would steer clear. It would be too easy to foul up a perfectly good deck. Personally I would add non-skid to an epoxy based paint appropriate for deck rather than trying to mold a gelcoat non-skid. Although it is impressive when done right I just don't see it worth the effort unless one is really trying to make it look original.
Thanks, I do not mind spending money on good tooling, I am not after just a flat surface but one that I can install my hatch molds in in a few locations and fair it easily before spraying duratec, on it to polish up to a glossy finish,
The last boat I did I used NIda core and was not happy with the service it has yeilded, I spoke to Jeff Bootz at nida core and all I got was an apology,
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