Tile trim are used to finish tile edges that cannot be finished smoothly with joints or when edging tiles are not available.
Finishing the edges of are necessary to make the transition to a tiled surface look neat and continuous looking—especially where corners meet—say, table top corners or where the a tiled wall meets a tiled floor.
To make the edges match the tiles, edging tiles are usually used. Others join the corner tiles with different joint cuts and smooth off the edges with a grinder to create a rounded edge (also called ‘bullnose’ or ‘half bullnose’).
Rounding off the edges of unglazed ceramic or stone tiles with a grinder is OK. But this is impractical with mosaic tiles—especially those made of glass. Mosaic tiles usually come in one-foot square sheets, with the individual mosaic pieces stuck on plastic front or mesh backing (paper backing for mosaic pieces made up of clear or translucent glass). These sheets, being flexible, can be used to tile gently curving surfaces. Needless to say, using a grinder on these mosaic tile sheets is not a good idea, unless you want to see the glass pieces fly around the place at high speed.
Still, you’ll need to finish those edges to prevent the tile pieces from being easily dislodged. This is where tile trim comes in. Tile trim makes tile edges look neat and protect small tile pieces from easily coming off. Tile trim are available in several materials, like plastic, aluminum or stainless steel. Plastic and aluminum tile trim are available in many colors and finishes (aluminum tile trim can be anodized with different colors) while stainless steel tile trim are available in polished or matte finish.
Depending on the kind of edges you are faced with, there’s a tile trim style for you. There are tile trim for stairs (these usually prevent feet from slipping); corner tile trim (for both vertical and horizontal corners; for outside or inside corners); and trim that bridge the gap between two tiled floors. There are also tile trim that allow a neat transition from tile to carpet—but you won’t be using these trim much with mosaic tiles, especially glass mosaic tiles, because these tiles are often used where there’s water splashing on them—say, in the kitchen, bathroom or in the shower.
The challenge of using tile trim with mosaic tiles, especially those with glass pieces, is to choose the trim that best complements the color and style of the mosaics. Choose a tile trim that does not draw away attention from colorful tiles. Use stainless steel trim to match stainless steel mosaic tiles. You can make a statement with a bright gold-colored tile trim with muted mosaic tiles. Pay attention to color contrast and harmony and your tile and trim combination will be a hit.
- Mosaic Tile Trim: Finishing the edges
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- Mosaic Tile Trims in different colors


