Grout Temporary Discoloration

Doktor

We just had grout redone and the installer put sealer on it. It is bright white. As soon as water hits it the grout turns a milky brown. As soon as it dries it goes back to white. The installer said that he did not mix the sealer as he should have and wants to come back and have another try. What should he be using and can he do this after the grout has dried for four days?

gregzoll

What color was the thinset that they placed the tile in? And what do you mean by having the grout redone? Did you scrape out the old, or just paint it with that pseudo tile coloring called "Grout Bully". Can you post a picture showing the dry grout, and also grout that has been wetted in the same pic.

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