Paint to seal out a smell?

antiskeptic

I got my chimney relined a couple of months ago which involved a large hole being demollished out of the living room chimney breast in order to aid removal of the old clay liner.

After the chimney breast was rebuilt and plastered and painted, there was a smell of old soot coming from the new plaster. I rang the chimney guy and he said that the water used in the mortar/plaster evaporating would carry the smell out. This would diminish in time. Which it has.

I want to ensure I don't get traces of smell leeching out when it comes time to light the fire again and thought to paint a sealing layer on the repair before repainting. Is there any paint which is suitable for this kind of task (sealing in smells)

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How long would it take for the rebuilt breast to fully dry out?

Thanks in advance

monkeynuz

antiskeptic wrote: »

I got my chimney relined a couple of months ago which involved a large hole being demollished out of the living room chimney breast in order to aid removal of the old clay liner.

After the chimney breast was rebuilt and plastered and painted, there was a smell of old soot coming from the new plaster. I rang the chimney guy and he said that the water used in the mortar/plaster evaporating would carry the smell out. This would diminish in time. Which it has.

I want to ensure I don't get traces of smell leeching out when it comes time to light the fire again and thought to paint a sealing layer on the repair before repainting. Is there any paint which is suitable for this kind of task (sealing in smells)

-

How long would it take for the rebuilt breast to fully dry out?

Thanks in advance

If you go to your local hardware store they should have products by zinnsser that are specifically for that sort of thing, bin primer and bullseye or something.

michael999999

We used to paint internal chimney breasts that the soot was seeping through with chlarinated rubber. Its probably too extreme in this case, but if BIN primer doesn't work it would certainly be worth looking at.

michael999999

Just thinking, if you seal up the rendered part would the smell not travel up the breast and come out further up.

Would you be better off not sealing, and lighting small fires for a few weeks and try and knock the smell out like that first?

antiskeptic

michael999999 wrote: »

Just thinking, if you seal up the rendered part would the smell not travel up the breast and come out further up.

Would you be better off not sealing, and lighting small fires for a few weeks and try and knock the smell out like that first?

Assuming normal service is resumed weather-wise

It might be a question of driving the smell out (letting the wall fully dry) and that'll be the problem solved. I suppose there must be a natural end to it sometime.

antiskeptic

monkeynuz wrote: »

If you go to your local hardware store they should have products by zinnsser that are specifically for that sort of thing, bin primer and bullseye or something.

Just looked it up and it looks like a great product if natural drying out doesn't work. Indeed, i've an application or two for it elsewhere in the house..