Grout hase on limestone

[jobdone]

Just laid 30m limestone. All sealed with stain stop 3 days prior to laying. went down well and grouted very well with Ardex fl. The faces were washed straight away and then the joints finished as soon as the grout was ready.
When the grout was set they were given a hot wash and a buff with a towel.
The light was not great so going back Monday morning to have a look.
The tiles were pitted on the top not all over but in places so held a bit of grout i don't think this is unacceptable but the tiles did not look clean and buffed all over.
If there is a haze on the stone what do you all recommend to remove it. Would cement residue remover be to harsh for the stone?
I dont want to go back and seal it(mid week) if it will need cleaning first.

Many thanks in advance

 

[Lithofin BOB]

Please do not use the cement res remover , this is acidic , grout in the deeper holes may need to stay there , but you could use a light alkali cleaner perhaps our Power clean ,dilute 1-3 use a white pad and test. Rinse and towel buff.
you may have a slight grout smear and poss bit of excess polymer this should clear it and not damage the stone, also re water test to ensure after clean you are still fully impregnated .
Ideally if the clean has cut back on impregnator you will need to top up , but the stone and grout will need to be fully dry after this clean back.

 

[Dave]

As above , do not use acid cleaners on calcium carbonate based stones...a big no no...

 

[Just Rizzle]

as above dont use acid cleaners but a tip if you want one try using a car buffer to polish the tiles with a lambs wool buffer get on for about 20 quid at halfords

 

[Dave]

Lol Ray....

easier to buy a floor buffer ...

 

[Just Rizzle]

true dave but some lads cant afford that kind of out lay but car buffer easier to use on walls,

 

[jobdone]

Thank you Bob power clean did the job does take some rinsing though.

 

[Lithofin BOB]

Thank you Bob power clean did the job does take some rinsing though.

Thats great mate, can be hard graft to rinse several times as can foam, I use large aqua vacs restoration wise, if you guys ever need to clean back a larger area, wet vacs can be hired for the day from most hire co, this will save hige amounts of time, also David's suggestion of clean and buff with a machine, yes these are expensive for occasional use , but again can be hired with the pads, can sometime make life easier and save time over rental cost.