Using Coosa

[goodpen]

Curious to hear how Coosa panels were used in Transom replacement. Specifically whether two 3/4 inch panels were used or was one 1-1/2 inch thick panel used. Interested in pros or cons on using one panel instead of two. Also what other types of foam core panels have been used in replacing marine plywood in the transom.

Professor

[hobson]

I have never used coosa but I'm also about to possibly replace a floor with it. Just wondering what pound coosa everyone has used for a floor and is coosa overkill? By the way professor if you need a good deal on some Coosa or any other core material for that matter let me know, I have some good connections.

[edloh]

hobson,

i might be needing some coosa. care to share your connection?

as for the original question, better to go with 2 thinner panel with a layer of mat between. this would allow the panel to conform better to the shape of the transom. the layer of may between the layers would promote better resin hold-up and thus bonding. bottom line is you want to get as much bonding between the panel and the old glass.

[bbh57]

I was quoted 170.00 per sheet for .5 nautical 24 in Tampa today

[1bayouboy]

Hobson.....ditto on needing some coosa.....would like to know your connection.

[edloh]

i was quoted abouit $216 for 3/4" bluwater 27# from a dealer in new orleans.

[CJR]

Professor,

I bonded a sheet of 1.5" AND .5" bluewater coosa to create a 2" core.I have also replaced my deck with .5" bluewater 26 with two layers of 1708 on the top. I am going to put a layer of 6oz. glass on top of the 1708. There is no give in that deck whatsoever.The coosa is great stuff to work with, but the fiberglass is B-t-h to sand. I have been using 40 grit on a DA sander to fair the deck. Where in NE Florida are you? I am in the Avondale section of Jacksonville.

[goodpen]

CLR,

I am in Jacksonville out by the Intracoastal Waterway between JTB and Beach. I used to live on Avondale Ave. west of Park St.

Would be very interested in seeing the progress on your floor.

Professor

[WillyC]

I used one piece of the 1-1/2 inch blue water coosa for my transom (20 sf). I found it very easy to work with; shaping and forming was a breeze with the jig saw and grinder. I'm pretty sure it bonded well to the inside skin of the transom. I reinforced the corners of the hull and bottom and put two layers of 1708 on the inside skin before installing. The existing transom was nice and flat as was the coosa and I made sure it fit just right before installing.

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[RUSTYNTABATHA]

It seems that there are several variations of composit board for glass work. what is the diference between these composit boards and the honeycomb style boards and does anybody know anything about using it for decking?