sanded grout? unsanded?
I've read everything I can and I need clarification.
In one post, this explanation for choosing sanded/unsanded grout:
The ONLY thing that determines which grout should be used is the joint size. NOT the glaze, NOT aesthetics, NOT the material (ceramic vs. glass or polished marble), NONE of those. I'll repeat-- the ONLY thing that determines which is used, is the joint size. Anything under an 1/8" takes unsanded grout. Anything 1/8" or bigger, you use sanded grout.
But from another forum:
Ceramic mosaics get grouted with sanded grout. Period. Unless you want to regrout later because of pinholes, shrinkage and cracking.....and hoping you don't have to grout a THIRD time.
(For a bit of reference, the discussion was regarding what to use for 1/8" joint...which seems to be right on the edge of both sanded and unsanded guidlines.)
My wall tile (which goes around the shower) is 16"x16" polished, my floor is unpolished 2"x2", and all joint are just a tiny smidge over 1/16".
So the walls can go unsanded (clear enough), but what to do about the mosaic on the floor? The gap dictates unsanded, but being mosaic might possibly perhaps suggest sanded.
Please, any clarification or guidance would be very appreciated.