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Re: [bolger] polyurethane/fiberglass cloth??

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  • Ford and Mary Ann Walton
    Bill, Fiberglass cloth and polyester resin are not too bad for joints and a bottom cover (although epoxy resin is much better), but straight polyester resin
    Message 1 of 3 , Jun 1, 2004
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      Bill,

      Fiberglass cloth and polyester resin are not too bad for joints and a
      bottom cover (although epoxy resin is much better), but straight
      polyester resin has always peeled off the plywood fairly quickly when
      I've used it as a coating. You would probably be better off with a good
      primer and an extra coat of paint for the bare wood.

      Good luck,
      Ford Walton



      bill shamblin wrote:
      >
      > builders,
      >
      > http://www.hci.net/~shamblin/may29015.jpg
      >
      > could polyurethane/fiberglass cloth work to cover joints and bottom
      > on the plywood sailing pirogue??? is there a better alternating for a
      > glue/cloth system besides epoxy/fiberglass or polyester/fiberglass??
      > i seem to be getting alergic to them.
      >
      > if not i will do the joints and bottom in polyester/fiberglass cloth
      > and paint the rest with just polyester resin for keeping the wood
      > dry??? the joints are pl-premium polyurethane glued using chine logs
      > of 5/8"x5/8" clear fir. then i will paint inside and out with porch
      > and deck paint???
      >
      > any advice appreciated.
      >
      > much to learn in nc
      > bill shamblin
      >
      >
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    • doug6949
      If you react to the fiberglass you could use Dynel or Xynole (sp?) polyester fabric. Defender has it. Epoxy sensitivity is more serious. Once you get it the
      Message 2 of 3 , Jun 1, 2004
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        If you react to the fiberglass you could use Dynel or Xynole (sp?)
        polyester fabric. Defender has it.

        Epoxy sensitivity is more serious. Once you get it the reaction will
        be more severe with each exposure. Vinylester resin is a good
        subsititute for epoxy. Polyester is not.

        The two-part urethanes would probably work as a resin but cost might
        be prohibitive for wetting fabric. As for one-part PU resin, well,
        maybe. There isn't that much urethane in plain old $25 a gallon PU
        varnish. It's mostly fillers.

        Doug

        --- In bolger@yahoogroups.com, "bill shamblin" <shamblin@h...> wrote:
        > builders,
        > could polyurethane/fiberglass cloth work to cover joints and bottom
        > on the plywood sailing pirogue??? is there a better alternating for
        a
        > glue/cloth system besides epoxy/fiberglass or polyester/fiberglass??
        > i seem to be getting alergic to them.
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