I want to put in marble tile in my kitchen, without any grout lines. Is there any special way I'm supposed to do this? I read that the problem will be that the edges of the tiles won't be perfectly aligned so there will be bumps, gaps and raised spots unless the whole thing is polished after it is in place (which I won't be doing). If this is not possible to do, what is the thinnest grout line I can have?

1/16" is the smallest grout line you should use. These lines will need to be filled with an unsanded grout, epoxy type grout or a silicone urethane grout.

Do not use any sanded type of grout with marble. It will scratch.

1/16" is the smallest grout line you should use. These lines will need to be filled with an unsanded grout, epoxy type grout or a silicone urethane grout.

Do not use any sanded type of grout with marble. It will scratch.



Thanks -- that makes sense. As I was laying the tiles out on the floor to see how they lined up, I was thinking all they needed was something like a tiny bit of caulking in between, and that silicone urethane grout sounds like it's just what I was looking for. I didn't know they made such a thing.