Kilkenny Honed Limestone Sealer question

[hmtiling]

Try universeal rapid all in one. Might get better results

 

[Flintstone]

I agree, try universeal

 

[Concrete guy]

How old is that tin of stain stop? It has a short shelf life from date of opening. If it's old (it looks pretty old) it may have evaporated and be no longer working appropriately.

I once used stain stop plus, which was regular stain stop mixed with colour intensifier. It was very difficult to apply without getting streaks but it gave the appearance that you seem to be getting here.

May be worth a new tin of stain stop to test?

 

[Barnjet]

Try universeal rapid all in one. Might get better results

Thanks HM I have seen good reviews for Universeal Rapid but I can’t find any local stockist to Peckham. It only seems to be available from a few distributors who charge an arm and a leg for delivery. Do you know if any of the regular builders merchants or chains stock it. Nothing comes up on the internet

 

[Barnjet]

How old is that tin of stain stop? It has a short shelf life from date of opening. If it's old (it looks pretty old) it may have evaporated and be no longer working appropriately.

I once used stain stop plus, which was regular stain stop mixed with colour intensifier. It was very difficult to apply without getting streaks but it gave the appearance that you seem to be getting here.

May be worth a new tin of stain stop to test?

Thanks ATS, it is an old tin, so you may be right. Anyway worth a go with a new tin as the product does get very good reviews

 

[hmtiling]

Thanks HM I have seen good reviews for Universeal Rapid but I can’t find any local stockist to Peckham. It only seems to be available from a few distributors who charge an arm and a leg for delivery. Do you know if any of the regular builders merchants or chains stock it. Nothing comes up on the internet

I'm not sure of stockists unfortunately. Trade tiler sell it and delivery shouldn't be too bad. I'd try ringing them tomorrow to see if anyone has it on the shelf near you

 

[Qwerty]

My money is on it being an old tin of sealer affecting its finish. I had to throw one away recently as I noticed the sealer had gone a dark amber colour

 

[Barnjet]

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?

 

[Dumbo]

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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You might get away with it , but if you want to try to what you have been sensible enough to do so far ,test , mix some grout , spread it on a spare tile , and spread some on a tile you have sealed . Leave for a few minutes , clean off allow to dry and see what you think ,.

 

[Concrete guy]

As a general rule of thumb the darker a limestone the more dense and less susceptible it is to staining (there are always exceptions through).

They are still porous though, so sealing is a must.

I'd do as @jcrtiling suggests and test it on an off cut, but I'd also leave some grout on the edge of the slab to dry overnight and see if the stone draws any dye from the grout.