Silicone sealer goes mouldy quickly

[Cliffpope]

You know the standard white sealer used round showers, sinks etc?

Why does it discolour and go mouldy so quickly? It's supposed to be waterproof, yet it seems to become impregnated with mould that won't clean off.

I did a nice job round our Belfast sink set in a worktop, but now 3 months later it's blackened and looking tatty.

Is there anything better to use?

[Onoff]

Everbuild Forever White.

[Lofty718]

Dow corning 785 I wouldn't use anything else

[Onoff]

I've also used BT1. Very good.

[Pocster]

This stuff is MAGIC for that . Best I’ve found . Spray , leave , repeat 

[Onoff]

45 minutes ago, Pocster said:

This stuff is MAGIC for that . Best I’ve found . Spray , leave , repeat 

 

Try this:

 

https://www.amazon.co.uk/200ml-Forever-Grout-Reviver-Energy/dp/B07XMBWLPZ/ref=asc_df_B07XMBWLPZ?

[Pocster]

Just now, Onoff said:

 

Try this:

 

https://www.amazon.co.uk/200ml-Forever-Grout-Reviver-Energy/dp/B07XMBWLPZ/ref=asc_df_B07XMBWLPZ?

No , you try mine ! 

[SteamyTea]

5 hours ago, Cliffpope said:

Why does it discolour and go mouldy so quickly

Because it is in a warm, high humidity/damp environment.

The problem is where it is, not the sealant.

[Cliffpope]

13 hours ago, SteamyTea said:

Because it is in a warm, high humidity/damp environment.

The problem is where it is, not the sealant.

That's what I'm saying - sealants are not designed for warm high humidity damp environments.

So what is? Is anything?

[SteamyTea]

15 minutes ago, Cliffpope said:

Is anything

Mould.

[Onoff]

Forever White in our bathroom for 5 years now is still like new.

 

Tbh it's so ****ING cold in there I don't think mould can grow 😂

[Temp]

As I recall there are two families of sealer, think it's acid and non acid? Someone will remember which is better.

[Kelvin]

Don’t let water sit on the sealant regardless of how good it claims to be. We wipe down and dry the shower every time we use it. Done it for years and never had any mould problems. 

[Pocster]

3 hours ago, Onoff said:

Forever White in our bathroom for 5 years now is still like new.

 

Tbh it's so ****ING cold in there I don't think mould can grow 😂

From the reviews I e read you have to ‘apply’ it - that sounds like work ! . My spray = no effort 

[Onoff]

1 hour ago, Pocster said:

From the reviews I e read you have to ‘apply’ it - that sounds like work ! . My spray = no effort 

 

Just tooled it as normal with the Fugi Cramer silicone tools.

[Pocster]

1 hour ago, Onoff said:

 

Just tooled it as normal with the Fugi Cramer silicone tools.

Thats still work ! . Don’t you like my spray ?