I just got this off the IMAC list and though I would share it here for you
guys who ship LARGE sailplanes!
"Mikey D wrote:
>
> Hi
> I'm having a heck of time getting all the air bubbles out of my part
layups.
Although I am very new to the art of laying up fuses (3 to date), your
frustration is very fresh in my mind.
I decided that a thin layer of thick epoxy between the mold and the
first layer of glass should work. It did.
A thin layer means, very thin in order to minimize weight build up. I
determined that nearly half the weight of a TD fuse is epoxy.
Thick epoxy means as thick as the squeeze mayonnaise (which is thicker
than the squeeze catsup or mustard).
It takes about two or three passes with the acid brush to spread the
epoxy/cabosil thin enough. I also rake up the extra epoxy as I go back
over the mold during the second/third pass.
This works (I think) because the epoxy holds the glass to the mold
sides. Also, the epoxy doesn't slide down into a puddle.
Hope this helps.
--
Ron Richardson"
Smooth Thermals,
Karlton "MrMPX" Spindle
http://www.MultiplexRC.com
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