oops. forgot to seal grout!

hi..it's been a few weeks and i completely forgot to seal the grout.

i have 4 x 4 ceramic tiles so i believe the tiles dont have to be sealed but i didnt seal the grout yet.

obviously i have used the shower many times already.

at this point can u please recommend a sealer and application method?

thanx..............mike

Don't sweat it. Even after you seal the grout, water will get behind it. Grout sealing is not intended to be water proof - just stain proof.

In fact, some mfg's recommend letting the grout cure for up to 28 days b4 sealing. You'll be fine.

Any decent grout sealer will do. I have had good experience with Aqua Mix sealing products.