how-to get rid of mould when re-applying silicon or grout

[Imran Aghayev]

Hi there,


For me, periodically the following issue occurs, every year same story, regardless of sanitized silicon brand it gets a black mould. I have to remove it and re-apply new silicone between tiles and bathtub.

Anyone who knows the best practice in this case, please advise.

I've just removed it again, thinking to spray a vinegar and try to clear it as much as possible.
After, maybe better grout between tiles and bathtub instead of silicone ?

Thank you everyone in advance.

 

[Mark DM]

Grout would crack along the joint. If you Carefully cut it away and clean everything up with a non scratch nylon pad and wipe down with some meths or white spirit it will be ready to redo ( when completely dry). You may have longer term success if you apply the silicone using a profile tool and lay down a small chamfered bead so water won't sit on it. Screwfix sell the tools I think.

 

[Severntrent]

And when you have done it keep mould at bay by spraying occasionally with Dettol mould and mildew remover

 

[WillyEckerslike]

Tissue paper soaked in bleach laid onto the silicone should bring it up like new. Leave it on for as long as possible - overnight for instance.

 

[GS63]

Tissue paper soaked in bleach laid onto the silicone should bring it up like new. Leave it on for as long as possible - overnight for instance.

Yes, we find this definitely helps.

Roger Bisby's Skill Builder Youtube channel has a vid about it.

 

[I do stuff]

Indeed, the Dettol mould remover will get rid of it. Spray on and leave. But it will be back!

 

[BespokeDan]

Try using something like this mould remover