PLASTERING

[SPROG]

HI
PLANNING TO PLASTER A WALL THAT I HAVE JUST REMOVED WALLPAPER FROM WILL THE PASTE RESIDUE CAUSE ANY BONDING PROBLEMS. THE WALL HAS BEEN PREVIOUSLY EMULSIONED. I WAS PLANNING TO PVA AND SKIM. ANY TIPS ADVICE APRECIATED.
CHEERS SPROG

 

[will60]

Hi,are the walls in fairly good condition? if not I would skim it after applying pva.If however they are in good nick Iwould skim it with gypsum easi-fill(tight coat) and then give it a coat of gypsum joint cement (bag) to finish it. i t comes up lovely when it has dried out .To finish it off g ive it a sand down with 120 grit sandpaper and it will now be ready to paint.It is much easier to use the latter materials,because if you are a novice at plastering, you may find skimming with plaster more difficult than people think.

 

[SPROG]

Have been on plastering course and skimming is fairly good. Just not sure how residue paste will affect the bond between skim coat and wall.

 

[will60]

well just play safe and pva the wall say watered 6-1

 

[SPROG]

cheers will60

 

[Richard C]

If its washable/silk emulsion, I would score the surface with a wire brush just to be sure you get good adhesion. Most of the walls in my old property have this stuff on & I’ve been using 2 coats of PVA; the first around 4:1, allowing it to dry overnight, & then a second, 6:1 coat just prior to skimming.

Plastering is not easy or for the feint hearted & I appreciate the reasoning behind will60’s comments but if you’ve been on a course, I assume you can put it on OK! If so, I would go with multi finish, it will give you a finished surface off the trowel & ready to paint. Sanding makes an awful mess & won’t give you any incentive to get better at it.

 

[AndersonC]

Do not sand it with 120grit, a proper polished finish plaster will look a milllion times better than something which has been abraded!!

 

[SPROG]

THANKS GUYS