Sheetrock repair

[Jack]

In removing wallpaper some of the sheetrock paper layers peeled off
partially. I try to repair it as much as possible by removing all the paper
edges on the sheetrock before applying the skimcoat. The problem appeared
the next day after the skimcoat in that there are many bubbles where the
paper damages were. I had to either cut out the bubbles or glue it down and
skim coat it again. It took a few cycles before it was done right as some of
the bubbles reappeared again and then again. For the time spend it would
have been faster just to rip off the sheetrock to bare studs and re-rock. Is
there a special way to repair the damaged sheetrock with not so many
skimcoats?

[Mike Paulsen]

Before you start mudding:
Peel/scrape off the loose paper.
Prime the area with an oil-based primer and let it dry.
Peel/scrape off any remaining loose paper and re-prime those spots.

You may find a few bad spots after you apply the first skim coat. If
that happens, carefully remove the loose paper and give those spots a
quick shot of KILZ spray primer.

I've used BIN, KILZ, and a few other brands of primer for this
application and haven't noticed that one works better than another.
Zinsser makes a product specifically for this, but I haven't tried it yet:
http://www.zinsser.com/wtb-GARDZ.asp?SID=11&WID=27

[tedd...@a.o.l.com]

Best method is to rip out all the sheetrock in the entire house and
start over. Why piss around with old junk....