Hugh Glass wrote:
On Sat, 24 May 2008 15:49:39 -0500, Art Todesco
wrote:

Nancy Young wrote:
"Norminn" wrote
Nancy Young wrote:
BTW, Gardz, from what I can guess, is
acrylic varnish .... looks like the MinWax
acrylic varnish product ... even smells
like it. I would think that shellac would
probably work similarly. After the
frustrations of brute force patching in
another
room, I am a Gardz believer.

Partially correct- Gardz will seal like a shellac. But it
(and this is the beauty of it) 'penetrates' and will bind unsound
surfaces together like a glue.

After 30 years of hanging wallpaper and running into many types of
wall conditions, I'm a HUGE Gardz believer.
I don't know what we ever did without it.
You're correct, I left that out in my
original answer. You can see the
penetrating action because all the
drywall carboard turns darker in color.
As I said, you have to be careful to not
saturate the area too much,
or the bubbles will likely appear. But
my experience shows that it
doesn't happen too often.