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Re: Fillet recipe?

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  • sconradpt
    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
    Message 1 of 29 , May 1 8:04 PM
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      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
    • 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 2 of 29 , May 1 8:48 PM
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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 3 of 29 , May 2 12:26 AM
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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 4 of 29 , May 3 9:16 AM
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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 5 of 29 , May 3 11:41 AM
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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>
              <html><body>


              <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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