100% silicone or Sanded caulking in a tile shower? [Archive] - Ceramic Tile Advice Forums - John Bridge Ceramic Tile


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03-09-2007, 02:59 PM
I just got done with my shower, many of you may have seen my post with pics. I need to caulk the bottom where the walls meet the floor and the corners that go up to the top. So many kinds out there, so is 100% better then a color matched grout caulk like the Mapei at Lowe's. Do I use clear 100% on the whole job or just in the corners and use the color matched stuff where the floor and wall meet? Why is one better then the other?

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03-09-2007, 07:58 PM
You can use the colored caulk. I only use silicone if the tile is white.

03-12-2007, 07:25 PM

03-12-2007, 07:45 PM
From Bill Vincent:

Again, the biggest things I don't like about 100% pure silicone are first, they're not water soluble when wet. It's next to impossible to get a nice tooled joint without taping it off, which is a waste of time when siliconized latex will do just as good a job. Secondly, ALL caulking must be replaced from time to time. It's just a matter of fact, and with pure silicone, it's impossible to get anything to stick to even an old silicone FILM. Even new silicone. Which used to mean you were up the creek. But recently, I've heard there's a solvent out made specifically for removing old silicone. So now instead, you just have to put up with one more carcenogenic solvent. Again, unnecessary when there's another product that just as good and much safer to use.

03-12-2007, 08:48 PM
Just check the labels on the caulk. Some are not to be used in a constant water situation. They will not hold up and will reactivate or breakdown and peel off.

Tool Guy - Kg
03-12-2007, 09:00 PM
If you can get the right color and the shiny look of silicone doesn't detract from the look (like against a matte finished tile), then I prefer the extra elasticity of 100% silicone. The hard part about silicone is tooling, but a technique that works for you is what it's all about. For me, I gun just enough silicone into the joint and use denatured alcohol on my finger....that works for me. I rarely tape off tiles and achieve very neat tooled beads.

I've tried a couple of the "silicone solvents" that I think Bill is referring to and they didn't work well for me. :( Plain mineral spirits still works better. It isn't fast, :shake: but it will clean up cured silicone.

03-12-2007, 09:05 PM
I know that my colored caulk is breaking down and mold is occuring. I will just remove and replace. Of course I am drying my shower down now. I used the Mapei as well.

03-13-2007, 08:10 AM
What's ttt? :confused:

03-13-2007, 02:21 PM
I just did my shower with Latisil (100% silicone) and found it quite easy to work with. Took a little practice, but I eventually got some very nice joints. I also put new Latisil over some that had cured for several days. If you do it quickly, denatured alcohol can clean wet Latisil. I also used one of those caulk tools from Homax where I could. :yummy:

Tool Guy - Kg
03-13-2007, 09:08 PM
What's ttt? :confused:I think it was just a "Bump" tactic. :)

03-13-2007, 09:35 PM
Yep, what Bubba said. It's short for "To The Top"