Can you put drywall "mud" over wallpaper? - top layer off ok, brown sublayer not coming off. Help! Thanks!
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Answers:
Mix some Downy Fabric Softener in water and spray it on the paper - wait for a while and it should take it off better than the kind you buy.
Someday that sublayer will come off and along with it, your mud.
Scurry on down to home depot and buy some wallpaper remover. You simply spray it on, wait a while, and "presto". You may need to apply heat to stubborn areas.
Get your "brown layer" real, real wet. It'll come off (yes you'll probably have to scrape it off). Don't skim coat over it. Your mud will come off. Maybe not today, maybe not a week from now but, everywhere the paper is, the mud will not adhere to the plaster and it will bubble...and then it will come off.
They actually make a special primer just for that. Ask your local paint store.
Seal the surface with a pigmented shellac primer (BIN makes a good product}, not a general purpose or latex primer. Then you can float out rough spots with drywall compound, sand and finish as normal.
Yes.
Prime with an oil base primer. This will cause loose areas to raise and harden. Sand, prime again, apply mud, sand after dry, prime for paint.
i am i said has the answer i was going to give you, it is the easiest and simplest and it works well and long and i've been painting everything for 40 years. if that sub layer ain't coming off it ain't a gonna come of in 10 years down the line.
It is better to remove the adhesive (brown layer). It will take tons of mud and a month of sanding to cover an entire wall.
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