Plastering Over Wall-board?

[DPB]

I am about to undertake the job of painting our recently renovated kitchen and adjoining family room.

One section of the wall is old wall-board - the kind with sisal fibre in it. Over the years, this section has flexed and the painted surface is in rough shape. Unfortunately, it will be almost impossible to remove this as it runs behind my splash-back.

Is it easy to cover this with a skim coat of plaster to cover up the anomalies? Any advice on how this is done?:confused:

[johnc]

It depends how solid the old fibrous plaster is, if it has had a thump and the bow is caused by damage to the sheet then you will most likely have ongoing problems. With top coat and a metal plasters trowel you can apply a thin coat to the surface and sand back which will fill imperfections and hollows. Get a sanding block to take plasters paper and sand off with 150 grit or a mesh sheet, in the end it only works if the base is solid so just press gently on the old material and see if there is any undue give.

John

[Harry72]

Could you cut it at the splash back, then replace the section with drywall?

[MrFixIt]

Is it easy to cover this with a skim coat of plaster to cover up the anomalies? Any advice on how this is done?:confused:DON"T. A thin layer of plaster *WILL* crack.

[ozwinner]

Do as Harry has said, get a stanley knife and cut just above the splash back, put on some new plasterboard and patch it up where the join is.
That would be the easiest option.

Trying to skim coat old stuff will look like you tryed to skim coat old stuff.
It will look awfull......:eek:

Al :)