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.