Glass Tile / January 16, 2019 / Annette Laforest
In situations where glass tile is exposed to extreme temperature differences an elasticizing polymer is added to the mix allowing the grout to stretch and flex preventing breaks from occurring in the delicate glass tiles. Using a grout float scoop a manageable amount of grout onto the float. Start at the farthest or highest spot away from you and spread the grout in between the tiles diagonally across the pattern. Dont worry about getting grout all over the tiles. The grout must be firmly pressed into the grout lines with the grout float covering all spaces and voids. Once a 3x3 section of grout has been applied to the tile use the small rubber edge of the grout float to remove about a third of the grout from between the tiles.
The reason for doing this is when installing the glass tiles you do not want to see the trowel marks through the glass tiles. Another key to think about when installing the translucent tile is to make sure the surface behind the tile is white. If you have a painted kitchen and the walls are currently a dark or strong color that color could appear through the glass tile. If installing the translucent tile make sure the surface is painted white first and make sure the use of white thin set as well. The second type of glass is where the glass itself is a crystal type glass with the color backed on the back. Most 4mm or 8mm crystal type glass is clear and then the color of the tile is applied on the back of the tile giving it the color.
Although the definition of clear/translucent glass is "allowing light to pass through partially or diffusely" it doesnt mean that all clear glass tiles are transparent in a way that you can see for example an object or your hand behind it. Clear glass is the material used to make these tiles but they can have color or not. There are basically three types of clear glass tiles: back colored stained and plain or non-colored. Back colored clear glass mosaic tiles are by far the most popular in the market. The tiles are made of clear/translucent glass usually from 4mm to 8mm thick and they receive a coating/painting on the back during manufacturing which is what gives the color to the tile.