S
smashedpeanut
Hi All,
I've just had the unfortunate experience of having to remove excess grout from the top of sawn Indian sandstone.
I used a very generous coat of Lithofin Stain Stop + to seal the tiles (850mm x 560mm). This worked very well and water actually beaded up on the surface, I haven't seen a sealer work so effectively before.
After grouting using Mapei Ultra Colour + colour 111, I cleaned the joints and wiped up what I thought was the left over residue. As we all know grout is often hard to see when the surface is wet.
The next day I discoverd to my horror that all the tiles had retained a top surface picture framing where the grout had been spread to fill the gaps.
No problem I thought...
I hired a pressure washer and gave the tiles a good consistent blast, this removed a further 30% of the residue.
At ths point I'm starting to really freak out...
I call my supplier who shrugs his shoulders and says you can try an acid based cement product remover, but this will probably stain the sandstone. WTF!
Then I had a brain wave...
I hire a floor polisher with those scouring pad discs much like the green kitchen scouring pads I use to clean my tools every day. After 6 hours and 6 pads I have managed to clean about 95% of the residue off, which is now acceptable.
PHEW...
Anyway just wanted to let you all know that there is a solution, bloody hard work, expensive & totally avoidable.
Happy tiling!
Cheers,
Stevo
I've just had the unfortunate experience of having to remove excess grout from the top of sawn Indian sandstone.
I used a very generous coat of Lithofin Stain Stop + to seal the tiles (850mm x 560mm). This worked very well and water actually beaded up on the surface, I haven't seen a sealer work so effectively before.
After grouting using Mapei Ultra Colour + colour 111, I cleaned the joints and wiped up what I thought was the left over residue. As we all know grout is often hard to see when the surface is wet.
The next day I discoverd to my horror that all the tiles had retained a top surface picture framing where the grout had been spread to fill the gaps.
No problem I thought...
I hired a pressure washer and gave the tiles a good consistent blast, this removed a further 30% of the residue.
At ths point I'm starting to really freak out...
I call my supplier who shrugs his shoulders and says you can try an acid based cement product remover, but this will probably stain the sandstone. WTF!
Then I had a brain wave...
I hire a floor polisher with those scouring pad discs much like the green kitchen scouring pads I use to clean my tools every day. After 6 hours and 6 pads I have managed to clean about 95% of the residue off, which is now acceptable.
PHEW...
Anyway just wanted to let you all know that there is a solution, bloody hard work, expensive & totally avoidable.
Happy tiling!
Cheers,
Stevo
