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rufuscobb 10-29-2013 09:22 AM

travertine backsplash - seal then grout?
I'm doing 2"x4" travertine subway tiles (the kind mounted on 1'x1' meshback) and would like to know:

(1) sanded or un-sanded grout?
(2) do I seal the tile before AND after grouting?


Amateuralex 10-30-2013 03:48 PM

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The only factor that determines whether you should use sanded vs unsanded grout is the size of your grout spaces. 1/8" and below use unsanded.

Read the instructions on the different sealers. When I used polished travertine I sealed before and after, but i think for the stuff with the pits etc you're expected to partially fill them with grout and not seal before. Not positive.

ccarlisle 10-31-2013 11:25 AM

Well, OK, that's the textbook answer about sanded vs unsanded grout in a travertine backsplash application, but there is texture to consider too; I like a smooth grout there not a rough one that the sanded would give...

I am also not a fan of presealing; I say go ahead and apply, then grout with unsanded grout, then seal - if you want as it's not really necessary in such a dense stone. Plus exactly what are you sealing against anyway?

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