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Re: Fillet recipe?

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  • roger99a
    I experimented with the limestone, too. I found that if you mix in some wheat flour it will hold it s shape better, but don t use so much that it get
    Message 1 of 29 , May 1, 2002
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      I experimented with the limestone, too. I found that if you mix in
      some wheat flour it will hold it's shape better, but don't use so
      much that it get "doughy". I found it suprisingly easy to sand, too.
      One of the fillets without cloth that I made on the seats of my
      Gypsy have failed.

      Roger S

      --- In bolger@y..., "sconradpt" <sconrad@t...> wrote:
      > I experimented on scraps with pulverized limestone (as recommended
      by
      > Carnell)as an epoxy filler tonight for a 90 degree fillet. Got a
      good
      > peanut butter consistancy and brown color, but it sagged too much.
      I
      > guess I'll add some cabosil. I'll check the strength in a day or
      two.
      > It is too cold here (50 - 60) for the epoxy to cure very fast. Do
      90
      > degree fillets have to be covered with cloth? or is the epoxy
      alone
      > strong enough?
      >
      >
      > --- In bolger@y..., David Ryan <david@c...> wrote:
      > > FBBB --
      > >
      > > I'm trying to get the LSME off my lawn and back into the lake
      where
      > > she belongs. The joints between the decks and bulkhead needed
      some
      > > help so I was trying to fill/fillet, but my goop was not staying
      > put.
      > >
      > > Anyone got a fillet recipe they're happy with? I'm using Raka
      epoxy
      > > mixed 4 parts resin, 1 part fast hardener, 1 part slow hardener.
      > I'm
      > > pretty happy with that combo for working time.
      > >
      > > YIBB,
      > >
      > > David
      > >
      > > C.E.P.
      > > 415 W.46th Street
      > > New York, New York 10036
      > > http://www.crumblingempire.com
      > > (212) 247-0296
    • thomas dalzell
      I experimented on scraps with pulverized limestone (as recommended by Carnell)as an epoxy filler tonight for a 90 degree fillet. Got a good
      Message 2 of 29 , May 2, 2002
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        <tt>
        I experimented on scraps with pulverized limestone (as
        recommended by <BR>
        Carnell)as an epoxy filler tonight for a 90 degree
        fillet. Got a good <BR>
        peanut butter consistancy and brown color, but it
        sagged too much. I <BR>
        guess I'll add some cabosil. I'll check the strength
        in a day or two. <BR>
        It is too cold here (50 - 60) for the epoxy to cure
        very fast. Do 90 <BR>
        degree fillets have to be covered with cloth? or is
        the epoxy alone <BR>
        strong enough?<BR>
        <BR>

        Pulverized limestone is undoubtedly strong enough. It
        is a very expensive material in the sense that it
        yields very little compound for a unit of epoxy, and
        the material is also heavy. That is the reason for
        microballons, as much as three times the volume of
        comp./unit epoxy.

        Yes and no is the answer on cloth. One usually does
        not require cloth where the loads are light, or where
        the compound comes under compression. Where it will
        be worked both ways, or the loads are major, then
        cloth will significantly (massively) reduce the amount
        of material required in the fillet. A listing of the
        amounts can be found in Gougeon materials, and the
        non-glass supported fillets are hugely larger than
        those we typically find in boats. If one wets the
        glass into the wet fillet, the time required to add
        glass is minimal.

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      • Chris Crandall
        ... Pulverized limestone, while heavy, it *NOT* expensive in terms of $$$ s. I used athletic field chalk , which is pulverized limestone. I got 50 lbs for
        Message 3 of 29 , May 3, 2002
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          On Thu, 2 May 2002, thomas dalzell wrote:
          > Pulverized limestone is undoubtedly strong enough. It is a very
          > expensive material in the sense that it yields very little compound
          > for a unit of epoxy, and the material is also heavy.

          Pulverized limestone, while heavy, it *NOT* expensive in terms of $$$'s. I
          used "athletic field chalk", which is pulverized limestone. I got 50 lbs
          for about $3. I aslo use it on my lawn to sweeten the soil.
        • thomas dalzell
          It isn t the limestone that is expensive it is the use of epoxy, labour, and the weight. Mix two pots of gunk using PL and microballons, with enough Cabosil
          Message 4 of 29 , May 3, 2002
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            It isn't the limestone that is expensive it is the use
            of epoxy, labour, and the weight. Mix two pots of
            gunk using PL and microballons, with enough Cabosil in
            each to eliminate sag. You will get 2,3,4 times more
            gunk out of the same epoxy using MBs as you get using
            PL. Everyone's prices will vary, but in my region,
            for my boats, it makes no sense to spend the time
            mixing 3 times the epoxy to get the same volume. It
            makes no sense in terms of the cost of epoxy. It
            makes no sense to add that much weight, where
            elsewhere I will be spending good bucks on stuff like
            balsa core etc... to keep weight down, just to
            economize on the filler.



            --- Chris Crandall <crandall@...> wrote:

            <HR>
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            <tt>
            On Thu, 2 May 2002, thomas dalzell wrote:<BR>
            > Pulverized limestone is undoubtedly strong
            enough.  It is a very<BR>
            > expensive material in the sense that it yields
            very little compound<BR>
            > for a unit of epoxy, and the material is also
            heavy.<BR>
            <BR>
            Pulverized limestone, while heavy, it *NOT* expensive
            in terms of $$$'s. I<BR>
            used "athletic field chalk", which is
            pulverized limestone.  I got 50 lbs<BR>
            for about $3.  I aslo use it on my lawn to
            sweeten the soil.<BR>
            <BR>
            <BR>
            </tt>

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