[drive surgeon]

how do i get grease and fat out of granite paving?  tfr wont touch it with cold water?

[Nathanael Jones]

Hot water might be the only answer.

[Small but perfectley formed]

Try degreaser

[johnny_h]

how about a washing up liquid? used neat just a thought

[Nathanael Jones]

If TFR won't touch it you could be in trouble. A specialist degreaser like the Nemesis microsplitter degreaser that John Kelly sells might be a better idea.(can't see it on his website at the mo, but worth asking)
https://www.btowstore.com/epages/15094.sf/en_GB/?ObjectPath=/Shops/15094/Categories/Nem

[The Great One]

Hi

Cold water won't touch grease, hot water and eithe brillo degreaser, washing up liquid or Biological washing liquid.

Good luck

Martin

[drive surgeon]

if you use washing up liquid you are going to be creating massive foam everywhere??

[The Great One]

Hi

Depends on how big the stain is, how much product is used, whether it's washed and scrubbed before any pressure washing is done, whether it will come away with hot water alone.

Regards

Martin

[stalwart]

Hi
granite paving slabs can be very porous if the oil/fat/grease has been on it for some time then your fighting a losing battle as it will suck its way through the slab itself.
If you get it quick you may stand a chance of removing it.
A little cheap trick i use,and this works really well with concrette slabs is to  mix up a paste(peanut butter thickness) of washingup liquid and washing powder,dampen the slab down with water then brush your paste on nice and thick,trick here is not to let is dry out if it does the paste will dry to a powder and be worthless so try and cover it with some plastic tape down the edges,leave it for a day or so and go back to check you may have to repeat this,its worked a few time for me,it all depends on the slab itself.
Wash off with hot water,you got no chance with cold,let it dry see how it is,if no luck after a few trys forget it,see if the slab can be replaced.

[stalwart]

Sorry i was meant to add this
If its a very dark color slab then forget that method most washing powder contains bleach,
and we all know what bleach can do

[drive surgeon]

there is a whole row of restaurants with the same floor covered in stains, stupid cleaning contractors let the grease soak in for ages,  they have not got a clue!!

[sherco]

I would use Aqua mix sealer & coating remover on this, that will shift the grease, and once cleaned i would apply a sealer to make future cleaning easier.