Installation Guide

Glass Tile Installation Guide
Tools
Diamond disc for cutting mosaics
1/16 - 3/16 V Notch Trowel
Grout Float
Level Finish Nails
Sponge
Bucket
Non-Sanded grout
Step 1: Substrate Preparation: The substrates need to be clean, compact, perfectly flat and free of dirt
and cracks. Nylon or wire brush can be used in cleaning the residues on the surface. If the brush cannot
remove the entire residue use bead blasting or sand blasting. Fix all the uneven area of the surface;
leveling compound might be needed to make the surface perfectly flat. Small cracks can be fixed using
crack suppression membrane or patch. Consult an engineer for an assessment of large cracks because
this might cause problem in the future. Make sure enough time is given to let the substrate settle (as per
manufacturers recommendation). Do not install the mosaic tiles directly over plywood or drywall.
Step 2: Laying Mosaic: Before starting the installation inspect all mosaic sheets and make sure that
material is in good condition and no defects. Identify the starting point where to start guidelines that
will help the lay out to be straight and symmetrical while installing. The size of the trowel depends on
the thickness of the mosaic tiles, thinner the material the smaller the trowel. The mosaic, unless
otherwise specified by the customer, is usually laid on white mastic or thinset to avoid altering its color
White thinset is usually recommended to use for the glass and other light or transparent product to
avoid discoloration of the background.
Once the starting grid has been marked, using the flat side of the v-notched trowel apply a layer of
thinset and use the notched side to go over the thinset to make uniform depth. Make sure to apply only
enough adhesive to area that you can tile within 15 mins because it dries very quick.
Once the adhesive is spread over the surface start laying down the mosaic sheets.
Using grout float press the mosaic sheet against the surface to guarantee perfect adhesion. Using the
same tool correct any alignment errors by lightly tapping the sides of the sheet. If the sheet starts to
slide down, place few finish nails on the last grout line on the top to keep it in place and move on the
next tile.
After one section is done, use damp sponge to clean up any residues of the thinset that squeezed up
between tiles. Thinsets usually require at least 24 hours for curing, for more time check the
manufacturers recommendation.

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