How to prevent soot staining ?

Alfielander

New Member
I’ve been asked to plaster the inside of an old coal fire place and have heard soot can bleed through skim, How do I prevent this ?
 
I’ve been asked to plaster the inside of an old coal fire place and have heard soot can bleed through skim, How do I prevent this ?
Running Man Abandon Thread GIF by MOODMAN
 
I’ve been asked to plaster the inside of an old coal fire place and have heard soot can bleed through skim, How do I prevent this ?
Bitumen, throw some sand at it when its still wet to provide a key
Or If its not too bad just PVA it then spray it with stain block next day.
 
I’ve been asked to plaster the inside of an old coal fire place and have heard soot can bleed through skim, How do I prevent this ?
I think if you need to prevent soot from bleeding through, seal the surface with a stain blocker or use a PVA solution before plastering. This will help stop the soot from affecting the skim.
 
I would cover the area that has soot contamination with building felt. fit EML this may have to have plug and screw fixings. Then float and set the area.
 
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