TILING OF MOSAIC

There are different types of mosaics:

  • Ceramic mosaic
  • Glass mosaic
  • Resin mosaic
  • Natural mosaic

Problem

Fixing mosiacs on each substrates

1. Fixing mosaics on cementititous substrates: As the normal case we frequently meet, they can be fixed with a cementitious product

2. Fixing mosaics on special substrates such as woods, gypsum boards, existing tiles: For these innovation cases, they can be fixed with polymer tile adhesive.

Ready-to-use paste adhesive has to be used in dry

Ready-mixed adhesive are dispensions of polymers and inert fillers in water and do not gain adhesion strength until the majority of the water has evaporated. If tiling in wet area, the evaporation process will be slow and adhesive setting time will then be longer.

Fixing mosaics on non-porous

Fixing mosaics on non-porous or non-absorbent substrate with paste-tile adhesive Water can leave the whole system by;

1. Being initially absorbed into substrate

2. Evaporating through the grout joint Evaporation through grouted joints is more likely to be the main function to generate adhesion bonding. Therefore, the joint width plays an important role on adhesion generating process i.e. water can evaporate more through wide joint than through narrow joint. Anyway, paste adhesive should be left until being completely dry before grouting to ensure the optimum adhesion.

Grouting while the adhesive drying is not complete

If the joints are grouted before the drying is complete, water will be trapped. As it then dries through the grout the water will carry dissolved salt or stain and cause some white or dirty deposit on the surface of the grout.