Frank wrote in
:

Phisherman wrote:
On Thu, 25 Jun 2009 16:11:18 -0400, "JoeSpareBedroom"
wrote:

I have to fill some rotted areas in the exterior frame of some
windows. I already have some latex exterior putty which I can build
up in layers. The areas in question are about as wide as a pencil
and maybe twice that deep. I've heard that some people use Bondo for
these situations. Is there a good reason to prefer that product?



Well, one reason I like Bondo is the speed at which it sets up. That
can be an issue for some.

While it's still plastic,it's easier to shave down,cuts down on dusty
sanding.

It files, sands and paints well.


Bondo cures and becomes solid whereas putty will remain soft. Bondo
putty refers to the putty like mix before it cures. I'd use it for
rotted areas which are cleaned to good wood. I've used epoxy but it
is more expensive than the polyester, Bondo. To extend epoxy in wood,
I sometimes blend with saw dust.


try RAKA epoxy(a thin,boat-building epoxy);
they have kits that are not as expensive as West or System Three,and they
aren't the polyester resins either.

There are all sorts of fillers you can use with thin epoxy;
Wood flour,plastic microballoons,plastic fibers,chopped glass fibers,and
fumed silica.I mostly use wood flour and fumed silica.


--
Jim Yanik
jyanik
at
kua.net