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Seal floor tile before installation?

Posted by JoAnneNYI (My Page) on
Thu, Jun 21, 12 at 9:11

I have polished Hampton Carrara basketweave floor tile from the tile shop. Plan to use spectralock epoxy grout silver shadow (or perhaps a darker grey). I know the grout need not be sealed. Have never used epoxy grout before.

I have read about "pre-sealing" before installing??? Is that just diluting your sealer? I don't want to alter the polished look of the tile.

If you seal after install will it matter for the epoxy grout?

Solvent or water based sealer? What if don't seal at all?

Are there shrinkage problems with epoxy grout?

Thanks for all your advice/help! JoAnne

Follow-Up Postings:

RE: Seal floor tile before installation?

If it's actually carrera marble and not "tile" (there IS a difference), then you might well seal the marble after installation but before grouting. Be careful NOT to allow the sealer to drip down into the grout joints.....this might prevent a good bond for the grout. Aside that, you should be "good to go."

RE: Seal floor tile before installation?

Have you read up on using epoxy grouts with marble tile? Every epoxy grout I've looked at says specifically (sometimes in the finest print) to NOT use it with natural stone.

You may end up with 'picture framing' where the edges of the tile darken permanently.

RE: Seal floor tile before installation?

From Laticrete's website:

Certain types of stone (e.g. Thasos White marble, White Carrara marb/e, other statuary marbles, and other absorptive stone) may draw the grout liquids into them causing a "picture framing" effect which will darken or discolor the stone. Coduct a test area to determine suitability and acceptability.

Here is a link that might be useful: LATICRETE

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