The silicone sealant (from a gun) behind the kitchen sink (sealing the
worksurface to the wall tiles) has several spots of mould where I have
been a bit lax with the cleaning. Anything I've tried will not shift
the mould stains. The mould seems to have ingressed into the sealant.
Is there any modern product I could try? Or is this a case of redoing
the sealant strip in due course? I looked in Tesco, but they had no
mould remover of any kind.

MM

On 22 Dec, 15:22, MM wrote:
The silicone sealant (from a gun) behind the kitchen sink (sealing the
worksurface to the wall tiles) has several spots of mould where I have
been a bit lax with the cleaning. Anything I've tried will not shift
the mould stains. The mould seems to have ingressed into the sealant.
Is there any modern product I could try? Or is this a case of redoing
the sealant strip in due course? I looked in Tesco, but they had no
mould remover of any kind.

MM

Lakeland had some mould remover for silicone but looking at the
'ingredients' list it seemed to be mainly bleach. So I tried bleach on
the black mould on the white silicone around the bath and it worked a
treat. Might be worth a try in the kitchen.

Andrew

"Andrew" wrote in message
...
On 22 Dec, 15:22, MM wrote:
The silicone sealant (from a gun) behind the kitchen sink (sealing the
worksurface to the wall tiles) has several spots of mould where I have
been a bit lax with the cleaning. Anything I've tried will not shift
the mould stains. The mould seems to have ingressed into the sealant.
Is there any modern product I could try? Or is this a case of redoing
the sealant strip in due course? I looked in Tesco, but they had no
mould remover of any kind.

MM

Lakeland had some mould remover for silicone but looking at the
'ingredients' list it seemed to be mainly bleach. So I tried bleach on
the black mould on the white silicone around the bath and it worked a
treat. Might be worth a try in the kitchen.


Bleach and/or replace, I'm afraid (


--
Bob Mannix
(anti-spam is as easy as 1-2-3 - not

In message , MM
writes
The silicone sealant (from a gun) behind the kitchen sink (sealing the
worksurface to the wall tiles) has several spots of mould where I have
been a bit lax with the cleaning. Anything I've tried will not shift
the mould stains. The mould seems to have ingressed into the sealant.
Is there any modern product I could try? Or is this a case of redoing
the sealant strip in due course? I looked in Tesco, but they had no
mould remover of any kind.

MM

Dettol anti bacterial mould and mildew remover spray, bought from Tescos
here - and doubtless other supermarkets if not in your Tescos, works
just fine here most of the time. You have to leave it on the black
patch to work over a few hours.

Val
--
Val Davies

MM wrote:
The silicone sealant (from a gun) behind the kitchen sink (sealing the
worksurface to the wall tiles) has several spots of mould where I have
been a bit lax with the cleaning. Anything I've tried will not shift
the mould stains. The mould seems to have ingressed into the sealant.
Is there any modern product I could try? Or is this a case of redoing
the sealant strip in due course? I looked in Tesco, but they had no
mould remover of any kind.


You could try putting some cling film over bleach soaked tissue pressed
into the sealant, and leaving it an hour or so. Or Vim and a scourer.

Good ventilation should help prevent it happening.

Rob

news wrote:
In message , MM
writes
The silicone sealant (from a gun) behind the kitchen sink (sealing the
worksurface to the wall tiles) has several spots of mould where I have
been a bit lax with the cleaning. Anything I've tried will not shift
the mould stains. The mould seems to have ingressed into the sealant.
Is there any modern product I could try? Or is this a case of redoing
the sealant strip in due course? I looked in Tesco, but they had no
mould remover of any kind.

Dettol anti bacterial mould and mildew remover spray, bought from Tescos
here - and doubtless other supermarkets if not in your Tescos, works
just fine here most of the time. You have to leave it on the black
patch to work over a few hours.

Yeah I find that works better than bleach - not sure why as I can't
think what other ingredients it contains. Still not foolproof though:
if it's very bad replacement may be the only option.

David

Lobster wrote:
news wrote:
In message , MM
writes
The silicone sealant (from a gun) behind the kitchen sink (sealing
the worksurface to the wall tiles) has several spots of mould where
I have been a bit lax with the cleaning. Anything I've tried will
not shift the mould stains. The mould seems to have ingressed into
the sealant. Is there any modern product I could try? Or is this a
case of redoing the sealant strip in due course? I looked in Tesco,
but they had no mould remover of any kind.

Dettol anti bacterial mould and mildew remover spray, bought from
Tescos here - and doubtless other supermarkets if not in your
Tescos, works just fine here most of the time. You have to leave it
on the black patch to work over a few hours.

Yeah I find that works better than bleach - not sure why as I can't
think what other ingredients it contains. Still not foolproof though:
if it's very bad replacement may be the only option.

Yup, much better than bleach - I don't know why either. Its described as
'activated' bleach whatever that means. It smells more strongly of chlorine
than normal bleach.

It also; "Contains an antimicrobial agent that removes stains caused by
ingrained mould" according to http://www.dettol.co.uk/sf_bathrooms.shtml#mmr



--
Dave - The Medway Handyman
www.medwayhandyman.co.uk

"The Medway Handyman" wrote:

Yup, much better than bleach - I don't know why either. Its described as
'activated' bleach whatever that means. It smells more strongly of chlorine
than normal bleach.

It also; "Contains an antimicrobial agent that removes stains caused by
ingrained mould" according to http://www.dettol.co.uk/sf_bathrooms.shtml#mmr


One of the best agents against mould is boric acid. It is extremely
effective when used in combination with sodium hypochlorite bleach.

I had to treat and remove some black mould at a house in the Caribbean
for friends who own it. I used boric acid and sodium hypochlorite
applied separately a day apart. 18 months later, it hasn't returned,
yet the mould had previously been a difficult problem for a number of
years.

I had no prior expertise and obtained the information about boric acid
and sodium hypochlorite bleach from Google searches.

MM wrote:

The silicone sealant (from a gun) behind the kitchen sink (sealing the
worksurface to the wall tiles) has several spots of mould where I have
been a bit lax with the cleaning. Anything I've tried will not shift
the mould stains. The mould seems to have ingressed into the sealant.
Is there any modern product I could try? Or is this a case of redoing
the sealant strip in due course? I looked in Tesco, but they had no
mould remover of any kind.

The only thing that will work is replacing the sealant. The mould is
often partly within the body of the sealant so no amount of chemical
warfare will get rid of it. The problem seems to be worse with silicone
sealants that produce acetic acid as they cure. Several species of
moulds can use this acetate as a food source, and the mould can
penetrate the sealant where it is cosy, well fed and happy.

Neutral cure silicone with a fungicide doesn't suffer in the same way.

Most of the commercial mould cleaning agents are based on sodium
hydroxide and bleach (sodium hypochlorite) with a little detergent "in
variable proportions". In general if you don't know much about chemistry
I can't recommend experimenting since the mixture causes terrible eye
damage if you manage to spray it into your eyes.

"Rob" wrote in message
...
MM wrote:
The silicone sealant (from a gun) behind the kitchen sink (sealing the
worksurface to the wall tiles) has several spots of mould where I have
been a bit lax with the cleaning. Anything I've tried will not shift
the mould stains. The mould seems to have ingressed into the sealant.
Is there any modern product I could try? Or is this a case of redoing
the sealant strip in due course? I looked in Tesco, but they had no
mould remover of any kind.


You could try putting some cling film over bleach soaked tissue pressed
into the sealant, and leaving it an hour or so. Or Vim and a scourer.

Good ventilation should help prevent it happening.

Rob

Vim and a scourer will rough up the surface and make mould get a better hold
in the future. Domestos will work. (not poncey supermarket imitations
though)

On Mon, 22 Dec 2008 23:14:14 -0000, "John"
wrote:

Vim and a scourer will rough up the surface and make mould get a better hold
in the future. Domestos will work. (not poncey supermarket imitations
though)

Boodly 'ell - I haven't seen Vim for decades - can you still buy it?
ISTR there was also Oxydol, a very similar product. I think the CWS
used to do another called Pulvo.
Cillit Bang (what a stupid name!) and Mister Muscle (another stupid
nomenclature) seem to dominate the horriblemarket market, apart from
things like 'specialist' stainless steel stuff and Bartsteward's
Friend or whatever it's called.

--
Frank Erskine

On Tue, 23 Dec 2008 01:16:59 GMT, wrote:

On 23 Dec,
Frank Erskine wrote:

Boodly 'ell - I haven't seen Vim for decades - can you still buy it?
ISTR there was also Oxydol

Oxydol was a washing powder for whites. I think you mean Ajax.

Probably. I'm sure you're rite...


--
Frank Erskine

On Tue, 23 Dec 2008 01:55:14 +0000, Frank Erskine
wrote:

On Tue, 23 Dec 2008 01:16:59 GMT, wrote:

On 23 Dec,
Frank Erskine wrote:

Boodly 'ell - I haven't seen Vim for decades - can you still buy it?
ISTR there was also Oxydol

Oxydol was a washing powder for whites. I think you mean Ajax.

Probably. I'm sure you're rite...

Or "Mirro"

WRT the black mould I'm fairly sure that what you see is just the
fruiting body and by the time it appears it's gone right through the
silicone, and if you clean it off it just comes back PDQ.

Derek