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Plywood backing alternative - Coosa board supplier ?

  • 13-11-2013 01:10PM
    #1
    castor 1
    Registered Users, Registered Users 2 Posts: 93 ✭✭


    I need to replace the plywood backing to a fibreglass transom for the rudder gudgeons and also to replace plywood backing for handles on the deck.

    The (25mm thick) marine ply is on its last legs and rather than replacing with similar I would prefer to use Coosa board or similar as it doesn't absorb water and will last a lifetime. Coosa board only seems to be available in the US.

    I would be grateful if anyone knows a supplier in the UK or Ireland.

    I'm sure fibreglass 'blocks' of 25mm strips would do the same thing if they are available anywhere ?
    I have googled lots of suppliers and can't find anything suitable.


Comments

  • #2
    fergal.b
    Moderators, Motoring & Transport Moderators, Sports Moderators, Paid Member Posts: 6,389 Mod ✭✭✭✭fergal.b


    If you coat the plywood in epoxy resin it should seal it and last for many years.



    .


  • #3
    castor 1
    Registered Users, Registered Users 2 Posts: 93 ✭✭castor 1


    fergal.b wrote: »
    If you coat the plywood in epoxy resin it should seal it and last for many years.



    .

    Thanks Fergal - that is my last option if I can't find the Coosa board or similar.

    Coating with epoxy is grand but when you then drill it to take 6 bolts it leaves a lot of places to let water seep in.


  • #4
    fergal.b
    Moderators, Motoring & Transport Moderators, Sports Moderators, Paid Member Posts: 6,389 Mod ✭✭✭✭fergal.b


    What I do there is drill oversize holes then fill them with epoxy and when it's sets drill them to the size i need that way it will remain watertight.:)





    .


  • #5
    breghall
    Registered Users, Registered Users 2 Posts: 605 ✭✭✭breghall


    fergal.b wrote: »
    If you coat the plywood in epoxy resin it should seal it and last for many years.
    .

    I'd go with this too , as sourcing Coosa board even seems to be a problem. Epoxy and ply properly done will also last and can be easily supplied.
    Some of these structual foam boards don't hold fasteners and the like that well either, they are good for shaping and area coverage but not too great to hold pieces that come under constant strains.


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