Kilkenny Honed Limestone Sealer question

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Ok new tin of Lithofin on order and a tin of Universeal Rapid. Delivery tomorrow hopefully.

In meantime apologise if this is a stupid question, but what are the risks if we don’t seal the tiles at all? Builder is going to use Mapei UltraColour Plus dark grey grout. Would this stain the tiles if we didn’t seal them first?

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How big are the joints gonna be? I imagine around 5mm. Don't grout before sealing and use a wide joint grout like bal. It'll save the builder a world of pain
 
How big are the joints gonna be? I imagine around 5mm. Don't grout before sealing and use a wide joint grout like bal. It'll save the builder a world of pain
Hi Hm, tiles already laid with 1mm spacers. Tiles have a cushion edge and are now under protective cover while he gets on with other stuff. Is the builder going to be suffering?
 
Hi Hm, tiles already laid with 1mm spacers. Tiles have a cushion edge and are now under protective cover while he gets on with other stuff. Is the builder going to be suffering?
He'll be OK with a 1mm joint but that's very tight. Mapei ucp us very fast and on larger joints, more commonly used with stone, is a bugger to get right
 
It’s the moisture from the adhesive that can stain the surface if it’s got nowhere to go.
 
Gulp HM, not sure what we can do about that unless we put the brakes on the whole project.

I do remember reading the adhesive packaging which said something about minimum water requirement being required to cure the adhesive. So fingers crossed there’s not much excess to come through.
 
Any pictures of the job before it was covered up?
This was covered the following morning
108023
 

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