Glass Tile / January 14, 2019 / Astrid Auclair
In addition there are two other eminent glass surface treatments for these tiles: slumping and etching. Smalti tile is type of tile which is an opaque glass. It has been in use from ancient times. "Smalti" is an Italian word and refers to a glass paste. Smalti is made by mixing molten glass with metal oxides for color. Translucent Smalti is a popular variant of smalti glass tile. It looks like stained glass with uniform colors. Byzantine Glass is another smalti variant made from thinner slabs of glass. Metallic Smalti is a swirl of a copper-bearing mineral added into the molten glass before it is pressed. Gold Smalti are made by applying a gold leaf and a thin layer of blown glass. Fused Tile is manufactured using the fusion method. In this type a flat glass is cut into tiles shapes and then fired in a furnace. The clear glass will show the tile until treated with a color.
Often glass tiles are translucent in appearance and any imperfection in either the setting application or the thinset is magnified. Whichever tile is being installed the substrate must be perfectly smooth using the manufacturers suggested setting materials and following their instructions exactly as written. Any "waves or grooves" in setting material are noticeable which is another reason a consumer needs to hire a contractor trained in glass tile installation. Another major quality difference between glass tiles is in the quality of the glass used during production. Oceanside Glass is famous for using recycled bottles in its production and provides consumers with a guide of how much post-consumer recycled material are used in their production and can assist with LEED accreditation. Additionally their state-of-the-art equipment for precision processing in batching changing furnaces and cooling molten glass is revolutionary.
The most important step in putting glass tile in a swimming pool is choosing the right installation materials. To reiterate the high rate of expansion and contraction of glass caused by temperature changes is the leading cause of cracks and damage to installed tiles. In order to compensate for this special thin-set adhesives and additives have been developed that expand and contract with the glass. The leading manufacturer of glass-specific tile adhesive systems is MAPEI and their Adesilex P10 thin-set and Keraply additive can be combined into an installation system that is specifically designed for applications where the glass tiles are completely submerged.