I saw a limestone staircase today. The customer wants all the joints made invisible (see attachment). The gaps are between the treads & risers, and between the outer/inner strings and treads. We are only talking about gaps of about 1mm, but they are quite visible. I was thinking of using a limestone wall grout and a grout gun, but have since gone off the idea of the gun. I think the grout and a finger should do the trick! However, the outer & inner strings are made of wood (which is painted). Do you think the flex grout would be flexible enough? or do you think I should be applying a very small bead of transparent silicone? Also, the treads need to be chamfered (as they have quite a sharp cut edge). Could I use wet & dry sandpaper or would a mechanical method be more appropriate? Cheers Sean
limestone.jpg

I would use a silicone suitable for stone.. grout will crack.

same here ^^

Silicone for me too....


Created on iPhone.....

Silicone for me too,

Wow, I'm surprised that the votes are for silicone. I just thought that people who choose lnatural stone do not want plastic trim or silicone on their stone tiles. In fact, the lady said she did not want silicone! Silicone it is then! Cheers for the replies.

As the stair stringers are timber, what are the treads and risers constructed off ???

Straw Akimi and limestone dust would be the way Id go.

Lynn

Originally Posted by Pebbs

Straw Akimi and limestone dust would be the way Id go.

Lynn

First time i used that ,made me feel quite ill,now i just smile when people come close to me when im doing repairs.Asdas staff in Burgh Heath walked out the first night i was using it...night manager not happy.Second night he said i couldnt work.Third night,only done 1 hour.Still got paid for 3 full shifts.

Resin filler will be ok for stone to stone joint but not timber


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Originally Posted by whitebeam

As the stair stringers are timber, what are the treads and risers constructed off ???

Limestone.

Originally Posted by Pebbs

Straw Akimi and limestone dust would be the way Id go.

Lynn

Kept getting results for Akimi Village computer game! Until I changed the i to an e to make Akemi !! Because of the wood in the construction of these stairs I will have to opt for the limestone coloured silicone. Just hope the silicone matches the colour of the limestone!

One quick question............would you seal before siliconing.............or is it the other way round?

That looks like Jura or Massongi I can't quite tell from the picture. You need Klindex Stukko Tixo Knife Grade Resin. It is 5 x easier to use than Akemi and has 3 x less odour. You fill the main gap with Paglierino coloured if necessary accordingly using 3mm window wedge spacers or you might get away with tile spacers to the wood then resin then finally fill the 3mm gaps with dab of appropriate coloured Mapei silicone.

Kevin

Thanks for that Kevin, i'll look into that product. Cheers Sean

Originally Posted by Marble Life Ltd

That looks like Jura or Massongi I can't quite tell from the picture. You need Klindex Stukko Tixo Knife Grade Resin. It is 5 x easier to use than Akemi and has 3 x less odour. You fill the main gap with Paglierino coloured if necessary accordingly using 3mm window wedge spacers or you might get away with tile spacers to the wood then resin then finally fill the 3mm gaps with dab of appropriate coloured Mapei silicone.

Kevin

have used the new akemi range Kev ? I was very very impressed with it when I saw it at the stone show and the guys at Apex Grange really rate it