Hi guys, anybody know how to clean black mould of bathroom wall tile grout
Cheers Ali

Neat bleach is the only thing I've found that will shift it.

Pour some on and leave for a couple of hours and it should disappear.

Worth checking there is nothing that will be damaged by bleach tough.



Stu

if its been left for too long it may have stained the grout in which case the bleach will kill it but it may not actually remove it all in which case im afraid you will either have to regrout or paint over, dremel actually do a grout removal tool!

Or just use a grout rake, and regrout. Not sure how good the proper anti-mould stuff is, the DIY ones are not great. Likewise the anti-mould sealants, know of any that really do last (the £10 a tube unibond stuff lasted a few years, want someting that will last better if possible)

also
Baking Soda
Washing Soda
Hydrogen peroxide --- (Oxy bleach stain remover)


Baking Soda solution is good because it also absorbs the smell.

Unibond mixes with most things and prevents damp/mould from coming through.
Out here, we have a proprietary 'squirt-on' mould killer called 'Muffycid' (honest).
Just bear in mind, that whatever caused the problem may do so again if you just address the symptoms and not the root cause.

Good luck, Bob.

dig it out and re grout with anti mould stuff. then improve the ventilation in the room and that will stop it coming back.

Must be a Sunday morning thing - Just done mine about 20 minutes ago, with mould & mildew remover mixed with bleach. Old nail brush brings it up clean again.

I find cleaning the grout and sealant lines with bleach regularly, like every 2 months or so, keeps it looking sparkling. Apply the bleach with a soft tooth brush and leave for an or so before rinsing.

[Edited on 5/2/12 by wicket]

Another vote for hydrogen peroxide. Find your nearest hairdressers supply place for the concentrated stuff, use it neat. It kills the mildew and spores, and bleaches the grout. Use gloves!!!

Cheers,
Nev.

water proof grout, or seal with a pva or ive painted a white gloss on the grout which makes it easy to wipe clean,more ventilation is required, ive used a good bathroom cleaner with a strong bristle toothbrush to clean, worst case ive sanded the grout clean

Just done mine today. I use bleach 50/50 with water. A fan above the shower is the best line of defence to prevent mould. For silicone use dow corning silicone with antibacterial action. £4 a tube but worth it.