Should I use grout sealant on a tiled shower?

Question

I have has my bathroom’s shower fully-tiled recently. Does this need any grout sealant applied to it? If so:
Is there any specific type I should use? 
Will it affect the look of the tiles?

Arben · Accepted Answer

You shouldn’t need any to apply grout sealant – most grouting is water resistant nowadays, while also frost resistant and containing microban (to reduce bacteria growth). Just make sure to check that your grouting is waterproof/water resistant on the packaging.
Be sure to leave your grouting for 3 to 5 days (brand dependant – check the packaging), to be certain that it has set through correctly (reaching the joints, not just the surface layer between tiles).
You may want to consider sealant for corners of your shower, along the vertical line where, over time, cracks can appear. This will at least keep your tiles sealed, even if cracks do occur beneath.
The only time you would specifically need sealant is if the tiles were porous, where water could get through, but this is less likely if you are using bathroom tiles specifically.

Christopher · Answer

Never go white with grout try to get the grout and the sealant the same colour.

Aaron · Answer

Hi,

All grouts are good, make sure you don't make your mix too watery.

Should I use grout sealant on a tiled shower?

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