What is the best way to seal the grout lines on a glazed ceramic tile floor?
There are many grout lines since the floor consists of many small tiles:
1x1, 1x2 and 2x2 mosaic pattern. Can I just brush the silicon over
everything and then wipe the tiles clean after it dries? It would be very
time consuming to apply the silicon just to the grout lines.
Thanks in advance for any advice.
I'd get one of the bottles with a brush in the cap intended for
sealing grout. It won't take long to paint all the lines, even
with 1" tiles.
I doubt the sealer would hurt the glazed tiles though. Clean up
with some water and a blue/green Scotch-Brite pad.
I find those little bottles of sealer with the brush/roller on the cap
tedious. Grout sealer will not harm/discolor your tiles if they are
glazed. I just pour it over the tiles and spread it around with a sponge,
wiping up any residue on the tiles with an old rag. You can also use a
paint roller, foam paint brush, spray bottle, what ever is easiest for you
to apply. Just wipe up left over droplets off the glazed portion of the
tile with a rag.
Thanks for your input Mark. I appreciate the response from both you and
Keith. You may have different opinions (both of which are valid) and I
learned something from the two of you who have more experience than me.
Do you wipe up the residue right after application? If the silicon dries on
the glazed tile will it still wipe off easily? Will wiping excess silicon
off the grout lines be okay? How quickly does the grout absorb the silicon?
I'm certainly not a pro; only tiled one house (2.5 baths, laundry,
and a couple of closets). The reason I prefer to paint the lines
is it uses less sealer and makes the cleanup simpler. I don't find
it any harder to do. My Jacuzzi tub surround (though 6" tile) may
have taken ten minutes for each coat and another ten to clean the
the directions should be on the bottle. I generally go over the
entire floor and then come back to wipe up the excess. Wait a half
hour or so and repeat. IIRC the directions on the bottle I used
said to do it until the stuff no longer is absorbed into the grout.
I've never had any trouble. A ScotchBrite pad is a good cleaning
abrasive (will even take grout off tile). It won't hurt the glaze
on the tile but will take anything else off it. Just don't use it
on the grout (the tile should be higher than the grout).
After it's done soaking into the grout, yes. You'll see the
difference. At first it'll soak right in, then a lot slower. Let
it sit a while then wipe it up (check the directions).
At first, pretty quickly. The second coat it may just sit there
for a while. Again, check the directions for the specific product
I sealed all the grout in my house with a colored sealant (to avoid future
staining and cover up current stains). I tried several methods, starting
with a paint brush and ending with one of those bottles with an attached
roller. The bottle was a huge time saver and I wish I'd had it in the
beginning because I have a lot of tile in my 2400 sq. ft. house.
If the grout needs cleaning before it's sealed, try those Mr. Clean Magic
Erasers. They work great.
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