Actually, if you mix microballoons into it until it looks very nearly thick
enough (soft peanut butter), then you'll find that only a little silica will
keep it from sagging. Estimating from my own work, I'd say about 85%
phenolic microballoons plus about 15% silica, by volume.

Brian

--
My boat project: http://www.advantagecomposites.com/tongass


"sour (max camirand)" wrote in message
...
On Fri, 17 Oct 2003 00:49:25 -0500, Donald Phillips
wrote:


Make up your own. I assume we're talking body filler, right? If it's
horizontal, I use mostly microballons or glass beads. It runs pretty
good and will self level fairly well. On vertical, add a good bit of
silica to the above until it doesn't drip off the stirring stick. Most
of us use epoxy instead of polyester. It works about the same which
ever you use. I don't measure filler. Use enough microballons to make
it thick and creamy. Add silica until doesn't drip off the stick.


Donald


These are good instructions. Just to specify, you want it about as
thick as peanut butter. Only use as much cabosil (silica) as
necessary, though, because it's a ***** to sand.

-m