How can I use Weldbond to attach tiles to mesh for my shower if you don recommend Weldbond for wet mosaics?
Weldbond is the adhesive commonly used to attach tiles to the mesh. The problem is that some novice users get adhesive on the sides of the tile. This means that the grout can’t properly cover the adhesive, and water/moisture can wick over time to the back of the tile. However, if the gluing and grouting are done correctly, and the mosaic is sealed with grout or concrete sealer, the mosaic can last for a long time. I use Weldbond sparingly so that there is some surface of the tile that can bond directly to the cement, thus making a more durable bond. I use thinset (sticky concrete) to attach the mosaic to the wall. I also use the same thinset for grouting. Some people avoid the whole issue of water penetrating to the glue by using paper for the reverse method and not using mesh. In the reverse method, the mosaic is laid out face down on sticky paper like clear contact paper. When finished, the sheet is pressed into thinset, and after the thinset hardens, the contact paper is peeled off.
