Model Forum / Radio Controlled / Water Models / May 2007

Nothing worth taking pictures of right now. I just sanded down the
second coat of primer and sprayed on a third. I smeared a very thin
layer of Bondo  in the seams on the outside to fill any grain and the
joints. A (Very small) small amount of grain texture can be sanded out
of the finished mold but you strive to have no flaws in the plug. You
will still have flaws but if you can't find them in the plug they
should be small enough to sand out with 220 then 400, 600 and 800 grit
wet sandpaper once the mold is done.

When the hull is smooth enough we will make the flange. This makes it
3x easier to remove a layup from a mold without damage to the mold or
the part.

After the flange is made we will prime the entire thing once more, sand
it down then paint it with several coats of paint.

After that the plug will be waxed about seven times, buffed between
each coat then the layup of the mold will begin (no PVA will be used
since it will bond to paint). The method for laying up a mold is
similar to making the part with some small differences that I will
show.

After the mold is done I will sand it through 1200 grit wet paper then
polish it and lay up a hull in it.

After the hull is done I will use it's final size to measure out the
deck plug and make it to fit the boat then repeat the mold making
process for it.

I will make a deck in the deck mold then join it to the hull.

JIM