If the tile has clay exposed that means the glaze or treatment on the surface is shot. I would not touch it. Sounds like it needs to be replaced.

On Tue, May 17, 2011 at 9:08 AM, stuart rosen <mail@stoneshine.com> wrote:
Shouldnt be too bad to strip-bare bones should do it-just be careful with your machine.Do a small area to test. I think you will be fine just make sure you dry it out-color seal,and use a good water based sealer to coat.We recently did one like that and used glaze and seal water based laquer finish-applied with lambs wool. easy to work with and no smelly shit.


On Sat, May 14, 2011 at 1:41 PM, Info Info <info@restoreyourtiles.com> wrote:
How would you strip and refinish terracotta tiles?
It is clay tile that was sealed with and sealer that is worn in many places. Scratch test exposes bare clay. I don't think that cleaning and resealing is proper way to restore it. I recommended stripping, grout color sealing and topical sealer to finish. We have done many stripping jobs (including Saltillo) and we are expirienced in it but we have not worked on bare clay terracotta tile.
 
I am concern about stripping this tile because of stripper absobsion into the tile. How do you guys do it? Do you use special stripper that is safe for this type of tile? How big sections do you do at one time, etc? Any help is greatly appreciated.
Adam Bartos
BiO Tile

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