mould on window sealant

diegosilang · 8 Oct 2008

Hi.

The sealant on most of my windows has mould growing on them. What's the best way to remove and then replace this?

Thanks.

^woody^ · 8 Oct 2008

You can clean it off with a fungicide, but it will most likely come back

This occurs when a silicone has been used which has no mould inhibitors, and the spores actually feed off it.

It may be best to remove it and use a sanitary grade silicone or a polysulphide mastic

diegosilang · 8 Oct 2008

Hi. thanks for the reply. what's the best way to remove them?

^woody^ · 8 Oct 2008

Most of it will come off with a stanley blade and some quick rubbing with your finder or a dry cloth.

"Silicone eater" from screwfix will do the stubborn bits

But is it just the sealant or do you have water ponding on the cill or on the frame/glass edge too? Are you wiping any condensation up and using air vents etc

If its a wider condensation issue, then try and sort that, and the mould may not take on the silicone so you won't have to renew it

diegosilang · 9 Oct 2008

Hi. there are water condensing on the rubber between the glass and pvc but as far as i know, there are no moulds growing on it. Although the rubber is dark in colour so i might be mistaken.

There are no moulds on the cill. I'm not sure if there are air vents but it's not draughtproof so i think it's ventilated.

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mould on window sealant

diegosilang

^woody^

diegosilang

^woody^

diegosilang

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