About Glass Tile

Tom · Joined: 22 May 2004 Posts: 7 Location: Seattle

Hi John,
I'm curious of your opinion on grouting & setting in one step for paper face mount mosaics? I know Latticrete has such an approved system for glass. Do you know of any other grout manufacturers that do? And what do you think of them?
The job I'm on now has 1/2" square, very thin, transperant, paper face-mount glass tile. I'm thinking of trying the grout & set especially because of the thinness of the tile.
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Tom Hulse
www.hulsetile.com

glasman · Guest

Tom,

The Alternate method of using a 118.4 thin set on a cured mortar bed or CBU followed by back buttering the mounted sheet, with the type of grout recommended for installation by the glass tile manufacture, then applying the sheet to the setting material and lightly tapping in with a beating block (very lightly for the thin glass tile) wait 30- 50 minutes prior to wetting the sheets and removing the paper has been recommended by the Ceramic Tile Institute of America in their "Tile Manual" since 1966 and works extremely well. This method revealed shear bond test results up in the 500 psi range the last time we tested it.

Good Tiling!

glassman

administrator · Posted: Thu May 27, 2004 4:06 pm Post subject:

Hi Tom,
I havent tried the method you describe. I dont disagree with the post by glasman, though I understand that the shear bond strength can vary alot, mostly depending upon the ( smooth or not) backing of the tile.
John
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Tom · Joined: 22 May 2004 Posts: 7 Location: Seattle

Thanks for the replies guys. Glassman my handbook is MIA... again. Can you clarify one thing for me? I've read the recommendation before, but I didn't remember the part about also using regular thinset too. Are you saying that's used wet at the same time as the wet grout? I would be worried about it working it's way up on thin tile. If I remember right the Latticrete grout meets the 118.4, so you wouldn't need a different colored thinset. I was wondering if you guys might know of any other manufacturers that have a 118.4 on their grout system? Great web site btw. I've reffered many people over from the John Bridge Forums where I'm a moderator. The picture directions can't be beat.
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Tom Hulse
www.hulsetile.com

khauner · Joined: 11 Apr 2004 Posts: 30 Location: Vancouver, Canada

Tom:

I started to read your posting and found myself going back to the manuals to check. I also called Laticrete's tech support just to make sure.

Laticrete recommends setting paper mounted glass tile with thinset used as both grout and adhesive (Laticrete 4237 Latex Thin Set Mortar Additive and Laticrete 211 Crete Filler Powder). Here you have a choice of white or grey.

If you wish to use colored grout, then they recommend the use of Laticrete 4237 Latex with Laticrete 1500 Series Tri-Poly Fortified Sanded Grout again for both grouting and setting the tiles. In either case Laticrete claims to meet the minimum standards specified under ANSI A118.4.

This amounts to using thinset as grout and grout as thinset.

In both cases the installation instructions are the same: the sheet of glass is placed face down and a small quantity of thinset or grout is worked into the joints with the flat side of the trowel, removing any excess.

The mortar (again either thinset or grout) is spread on the wall or floor with a 1/8" x 1/8" notched trowel. For more even adhesion, the nothes are flattened with the flat side of the trowel and the glass sheet is applied and beat in place with a flat wood block to obtain a uniform surface.

After the mosaics are set firm (about 30-50 minutes depending on climate) a sponge dampened with warm water will loosen the paper so that it can be peeled off. Fill any pin holes in the grout with the same setting material and clean with a dampened sponge.

For more detailed instructions, you can call Laticrete's tech support number at (800) 243-4788 ext. 235 and ask for Data Sheet 230.311.

Guest · Posted: Mon Jun 07, 2004 6:19 pm Post subject:

Thanks Khauner (got a first name? ). That's the method I was referring to in my first post. I've actually done a small job that way already. I haven't yet tried glassman's method with wet thinset & a different wet grout at the same time. What I was hoping to find out was whether anyone knows if there are any other brands of grout besides Latticrete that can also get a 118.4 thinset spec with their grout. It's not that I mind Latticrete so much, it's just that the only Latticrete distributor around here is the farthest of all the grouts from me, & the appropriate grout is special order. Thank you very much for looking into that.

laleh · Guest

Hi there. Does anyone have an answer to this question? I have to install this weekend and can't get a hold of latticrete.

thanks!

administrator · Posted: Sat Jul 03, 2004 10:35 am Post subject:

Hello Ill check into this and get back to you shortly
JD
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www.aboutglasstile.com

administrator · Posted: Sat Jul 03, 2004 11:42 am Post subject:

For paper faced tiles, you can use any gray or white laytex modified thinset also as a grout. If the tiles are not paper faced, this will not work as the thinset will be too tacky and difficult to work with.

Laticrete is the only manufacturer weve heard from so far who claims to have successfully added to their grout such that it can perform as an adhesive too.
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nc74 · Guest

I looked at the Laticrete web data sheet, and although it talks about using 4237 and the 1500 grout when a colored mix is desired, I can't find anything about this mix complying with ANSI A118.4 Latex Modified Thin-set standards. I believe it has been tested to make sure it has the strength requirements for bonding, but has not been tested for compliance with the other parameters of 118.4 (i.e. opentime, adjustability, sag, inital set, etc..)

NC74