Can i repair lining paper (torn and bubbled) for painting??
by
Bob12467207
for painting a smooth finish
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See if this will help you. He start off with a question similar - in a way - to yours, then describes why this happened and what to do about it.
http://articles.chicagotribune.com/2013-01-18/classified/sns-201301071900--tms--askbildrctnab-a20130118-20130118_1_drywall-paper-sealer
If you don't find help with this article, go to google.com and type in the same question you did above (except complete the word 'finish'. That should give you a lot more articles to read.
Good luck!