S
secteur
Hello,
I am looking for some advice about laying a fireplace front hearth of Porto Beige limestone and very much hope someone could help.
I have some 20mm thick slabs which are 600mm square and are leftovers from our kitchen floor which was laid by a true craftsman ten years ago. The surface finish is honed but not polished and I am going to finish the stone with Lithofin StainStop MN. The hearth will be rectangular, about 850mm wide and 350mm deep and will stick out 350mm in front of the fireplace opening but will not extend back into the fireplace recess. I have cut the stones on a diamond saw with water cooling, two pieces 175mm by 350mm, and a middle piece that is 500mm by 350mm. The substrate is a well-cured, flat concrete screed. I'd like to go with a solid bed, fast setting adhesive layer about 3 or 4mm thick.
I've read a lot on this forum about limestone being stained by the adhesive, and I'm looking for advice about whether I should use some Stainstop to seal the stone all over before laying. If I use a white, fast setting adhesive, do I need to bother given that the stone is beige, and I believe, quite hard for a limestone? What adhesive would you recommend. I'd rather not buy a 20kg bag given that the area is only a third of a square metre so something that comes in small 5kg bags would be ideal. Alternatively, ready mixed in a tub. The grout is a powdered grout that is beige in colour. I know it is suitable because I cadged it off the guy who laid our kitchen floor. I think I should seal the stone before and after grouting.
I would really welcome any advice and any doubts that you may have about what I intend to do.
Thank you very much.
I am looking for some advice about laying a fireplace front hearth of Porto Beige limestone and very much hope someone could help.
I have some 20mm thick slabs which are 600mm square and are leftovers from our kitchen floor which was laid by a true craftsman ten years ago. The surface finish is honed but not polished and I am going to finish the stone with Lithofin StainStop MN. The hearth will be rectangular, about 850mm wide and 350mm deep and will stick out 350mm in front of the fireplace opening but will not extend back into the fireplace recess. I have cut the stones on a diamond saw with water cooling, two pieces 175mm by 350mm, and a middle piece that is 500mm by 350mm. The substrate is a well-cured, flat concrete screed. I'd like to go with a solid bed, fast setting adhesive layer about 3 or 4mm thick.
I've read a lot on this forum about limestone being stained by the adhesive, and I'm looking for advice about whether I should use some Stainstop to seal the stone all over before laying. If I use a white, fast setting adhesive, do I need to bother given that the stone is beige, and I believe, quite hard for a limestone? What adhesive would you recommend. I'd rather not buy a 20kg bag given that the area is only a third of a square metre so something that comes in small 5kg bags would be ideal. Alternatively, ready mixed in a tub. The grout is a powdered grout that is beige in colour. I know it is suitable because I cadged it off the guy who laid our kitchen floor. I think I should seal the stone before and after grouting.
I would really welcome any advice and any doubts that you may have about what I intend to do.
Thank you very much.