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Housekeeping

Find cleaning advice from other Mumsnetters on our Housekeeping forum.

Does bleach-based mould remover damage silicone sealant?

8 replies

mentalblank · 27/05/2023 10:23

Our bathroom sealant is mouldy, and we were advised by a plumber that mould remover products based on bleach (which seems to be most/all of them) damage silicone sealant, so we shouldn't use them. Does anyone know if this is right? I've found a bunch of conflicting information online. The alternative seems to be to use vinegar, but given that this is acidic, I'm not sure if this is a good idea either!

OP posts:
LIZS · 27/05/2023 10:34

Not that I've noticed but it degrades over time anyway.

CatsOnTheChair · 27/05/2023 10:37

Yes, but not instantly.
So, if you sure bleach regularly, it will degrade faster.
But the mould will also degrade it!

Just clean it!

SirChenjins · 27/05/2023 10:39

Not that I’ve noticed - I’ve been using HG Mould Remover on silicone sealant for years and it hasn’t done any harm that I can see.

Greentree1 · 27/05/2023 11:10

I've never managed to get mould completely off silicone sealant whatever I use. The surface black comes off but the sealant is still ingrained black. The only cure is to dig it out and replace. Has anyone managed to get the ingrained black off?

ichundich · 27/05/2023 11:13

I mean what's the alternative? Vinegar doesn't really work on mould in my experience (might kill but not get rid of the stains). Just get it resealed every now and then.

mentalblank · 27/05/2023 11:35

Thanks all. @ichundich I agree the alternative isn't clear! The plumber suggested scrubbing with a toothbrush and water but this isn't very effective... @Greentree1 I also have no idea how to deal with this issue!

OP posts:
Cyclewidow46 · 27/05/2023 16:12

I use Mould Magic. It's really good and does not appear to damage the sealant from what I can see.

musthaveideas.co.uk/products/mould-magic

Jellifer · 27/05/2023 17:39

Another vote for mould magic…. Just used it again today

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