Sorry to be asking such a novice question
but I have some thin powdery dried tile grout
on some of my new shower tiles (Not obvious because of the colour but
you can feel it when you are in the shower and touching the tiles).
Am I right in thinking its just a matter of elbow grease and nylon
scourer or is there a special product I can use to get rid of it?
I don't want to spoil the glaze on the new tiles.
Reason for stupidity, didn't realise the tiler chap hadn't done a very
good job of cleaning off the grout until we got back from our hols and
started using the shower.
No, its very hard to scratch glaze (or glass for that matter) with a
steel blade - even using some force.
You can get commercial grout cleaners. I expect these are just weak
solutions of HCL. Patio cleaner would also do the trick used sparingly.
Once it is all clean, it would also be worthwhile treating with Lithofin
grout protector. That will keep it clean and new looking for many years.
Don't be silly. It contains white cement. Cement isn't always grey.
The colour of tile grout depends at least partly on the colour of
John Rumm is exactly right; the ingredients are cement and fine
fillers - basically the stone dust extracted from crushing operations
There is also "sanded grout" which is used where the gaps to be
grouted are wider than 3mm. This grout contains cement, fine fillers
and some sand.
Was going through boxes of stuff in the garage today, and opened one to
see what was it it. Loads of cans, bottles, etc, and sat there on top
was a tub of "Waterproof acrylic grout"...
So there, now I have seen an Acrylic one. ;-)
To be fair - both exist, although the commonly available powdered ones
are typically cement based IME. e.g:
I wasn't dreaming then :-) Or dreaming that I'd used it on several
It all comes down to your interpretation of "white" I suppose. AFAIK the
titanium white we're used to seeing isn't possible with cement, but
maybe white tiles aren't bright white either.
Interesting that the BAL Microflex is cement based but is also flexible
i.e. it contains "built-in admixture to provide flexibility". Can cement
really be made flexible? Try telling that to the conservationists!
Yes, it can!
There is a whole range of admixtures that can provide flexibility in
the matrix. The hydrated cement particles are still stiff; the
flexibility comes from what is in the matrix around them.
There is no reason for conservationists to consider anything cement
based, especially with admixtures that have not yet stood the test of
centuries of time, when the perfect original materials are still
available in the form of lime mortar etc..
The secret motto of conversationists is to make the repair as rotten as
the original was, so they don't do themselves out of business ;-)
I believe portland cement was first used in major form to construct the
giant sewer that runs under the embankment.
Its already lasted longer than most lime mortar houses have..
But never allow facts to affect dogma eh?
Well, assuming coloured is the same base as white, from la bouche du cheval:
UNIBOND READY MIXED COLOURED WALL TILE GROUT
Water based adhesive based on styrene acrylic co-polymer and silica filler.
UNIBOND CERAMIC WALL TILE GROUT
COMPOSITION/INFORMATION ON INGREDIENTS
WHITE PORTLAND CEMENT 30-60%
Cement-based grout with mineral filler.
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