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Discuss Indian Sandstone Picture Framing/Grout marks in the Specialist Tile -Stone, Porcelain, Glass area at TilersForums.com.

1

1sandyh

Sorry both products are Lithofin - there’s a choice of cement away or builders clean.

I think the problem with this type of grout was as someone else said, it’s rapid setting. It maybe set on the slabs? Wasn’t washed off fast enough?

I managed to find one other thread similar from 2012 on another site. They replaced the slabs which hasn’t filled me with confidence & isn’t an option full stop
 
B

Blunt Tool

Sorry both products are Lithofin - there’s a choice of cement away or builders clean.

I think the problem with this type of grout was as someone else said, it’s rapid setting. It maybe set on the slabs? Wasn’t washed off fast enough?

I managed to find one other thread similar from 2012 on another site. They replaced the slabs which hasn’t filled me with confidence & isn’t an option full stop
Cement away
 

Boggs

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I have cleaned my own sandstone paving with mortar remover after having an extension built but this was more localised areas rather than the whole thing.
I put the cleaner in a bucket and used a scrubbing brush dipped in the cleaner and washed down with plenty of water.
I sealed after with a colour restorer/sealer.
It didn’t damage the stone in my case but then mine were not covered like yours.
 
D

Dumbo

Back with an update. Not good.

Spent all of last weekend scrubbing & scrubbing with the Builders Clean. Not budged.

Contacted Lithion, they advised to use a stronger concentration. I ended up using it almost neat, scrubbing, leaving, scrubbing, rinsing. Nope. Not budged.

Contacted a cleaning company who quoted £900 to clean it!

Don’t know what to do from here.
What cleaning company did you contact . Are they a specialist stone cleaning company . Other wise I wouldn't bother .
 
O

On one

Back with an update. Not good.

Spent all of last weekend scrubbing & scrubbing with the Builders Clean. Not budged.

Contacted Lithion, they advised to use a stronger concentration. I ended up using it almost neat, scrubbing, leaving, scrubbing, rinsing. Nope. Not budged.

Contacted a cleaning company who quoted £900 to clean it!

Don’t know what to do from here.
Did you only ask Lithofin regarding Builders Clean?
There may be other options with other Lithofin products.
 
1

1sandyh

I wish it was that easy. He’s disappeared off the face of the earth. Phone off not returned any messages voicemails or emails.

Lithofin said there is nothing else suitable for sandstone, but that builders clean should do the trick.

I guess the problem is the grout used was a resin rapid set not traditional sand & cement.

Really don’t know where to go from here. The professional cleaning company said they would use chemical cleaners to remove it, harsh? He’s quoted 1-2 days for 1 man. There’s no way I can afford £900 though
 

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