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 Post subject: What sealer for Mold
PostPosted: Fri Apr 06, 2018 10:11 am 
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Mr. Grumpy

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Hi all, as you can see from the pictures mould build up is becoming pretty bad.

I am cleaning it up with a mould remover but what solution should I prep the background with before painting?


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 Post subject: Re: What sealer for Mold
PostPosted: Fri Apr 06, 2018 8:16 pm 
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ok update. I drowned it in mould remover and it cleaned a lot but its got through the paint work back to the plaster. Hence I removed the PVC trims, scraped all paint off back to the cement render. Sanded it with a 80 grit orbital sanded and looking clean and fairly smooth now.

Can I just just a mist coat and repaint or is it wise to try seal it somehow? :scratch:


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 Post subject: Re: What sealer for Mold
PostPosted: Fri Apr 06, 2018 8:52 pm 
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You are in a hurry. Let me get wineoed first :-) (as if I am the only one that can reply).


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 Post subject: Re: What sealer for Mold
PostPosted: Fri Apr 06, 2018 9:26 pm 
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OK, next bottle opened but not as nice as the one that just finished.

You can't seal mould. Your mould remover should kill the mould so you got no spores left. Follow the instructions esp. if it mentions to let it soak for X time.

If you think you will remove the cause of the mould[*] then mist coat on bare areas and top coat. However, if you think the mould may come back then there are paints designed to resist mould to a point. Zinsser says prime with BIN and then use Perma White. Perma white is mould inhibiting and can be tinted to some pastel shade or another depending where you buy it from. Crown has a similar product steracryl ... I don't know the price but I am sure it will make a dent to your plastic card. Dulux and Johnstone's will certainly have similar but I will have another glass instead.

All the above are inhibiting products, not solutions. That ceiling looks bad :-( must be really cold above it for steam to condense right there.

--

[*] if you can remove steam/condensation etc from the room which means lots of heating + ventilation + no clothes drying or any heat generating activities, sweating, heavy breathing etc. then you may get away with ordinary paint. If money is tight, you can use ordinary paint and then if it comes to the worst you have to do all again using mould resistant stuff.


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 Post subject: Re: What sealer for Mold
PostPosted: Sat Apr 07, 2018 7:28 pm 
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Treat the mould once. Leave 24 hours. Do it again.

After that you could use an expensive Zinsser product... Or you could use a bog standard oil-based undercoat. Works for me.

BTW you must ensure that whatever caused the issue in the first place is cured. whether ventilation or leaking gutters or summat else.

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 Post subject: Re: What sealer for Mold
PostPosted: Thu Apr 12, 2018 3:32 pm 
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Hi Lads,

I have been unable to log on using my phone for some reason so apologies for the late reply! using a PC now

Went to the store and look at zinseer but way too expensive for such a small job. i undercoated it like you mentioned and just did a mat finish to match the rest of the walls. I daresay it will come back soon as this flat is rented to girls who complain that I have the heat at 22 degrees (complain its too cold), never open a window and being girls, the washing machine is running twice a day :roll:


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 Post subject: Re: What sealer for Mold
PostPosted: Thu Apr 12, 2018 6:10 pm 
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wine~o wrote:

BTW you must ensure that whatever caused the issue in the first place is cured. whether ventilation or leaking gutters or summat else.


DIY_Johnny wrote:
this flat is rented to girls who complain that I have the heat at 22 degrees (complain its too cold), never open a window and being girls, the washing machine is running twice a day :roll:


So the issue is never gonna be cured then ? :lol:

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 Post subject: Re: What sealer for Mold
PostPosted: Thu Apr 12, 2018 6:13 pm 
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Been doing some maintenance in a rental flat today and there's mould everywhere, the property is only four years old. No windows are ever open, there's soaking wet washing on radiators and clothes horse and they wonder why it's mouldy.


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 Post subject: Re: What sealer for Mold
PostPosted: Thu Apr 12, 2018 6:25 pm 
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wine~o wrote:
So the issue is never gonna be cured then ? :lol:


Imagine if they have a shower or a bath each every day. OMFG, what is the world coming to :mrgreen:


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