Mosaic adhesives: Cementitious vs epoxy

by Ofentse Sefolo
Mosaic adhesives: Cementitious vs epoxy

When installing mosaic tiles, the consideration of the service conditions will determine the choice of either a cementitious or epoxy-based adhesive. But what is the difference?
Cementitious adhesives, such as TAL Mosaicfix, are designed for fixing and grouting most types of mosaics, and can also be used for fixing small-format “fusion-type” glass mosaics. This adhesive is suitable for use on walls and floors, in interior and exterior installations.

Epoxy adhesives, such as TAL Fine Epoxy Mortar and Grout, are ideal for installation areas where imperviousness, chemical resistance and good hygienic conditions are important, such as abattoirs, dairies, hospitals, food and beverage production and preparation areas, swimming pools and more.

Also, a water-based option such as TAL Fine Epoxy Mortar and Grout is easier to clean up than traditional epoxy adhesives.

TAL Advisory Service
Tel: 0860 000 (TAL)825
Website: www.tal.co.za

TAL’s tips for installing mosaics:
•    The mosaics should be firmly bedded into the adhesive to ensure good contact.
•    Ensure that the adhesive penetrates (oozes) through the mesh-backing into the joints between the tesserae. A wooden beating block or rubber grouting float can be used to create a flat surface.
•    Remove the surplus adhesive from the tile before it dries, and use the same adhesive to grout the joints.
•    Due to the brittle nature of glass, when using glass mosaics always add flexibility to the adhesive system by modifying it with an additive such as TAL Bond.

Caption main image: The mosaics should be firmly bedded into the adhesive to ensure good contact.

If you enjoyed this article, please join other discussions like this on http://www.facebook.com/buildinganddecor, http://www.twitter.com/buildingdecor and https://www.linkedin.com/showcase/10172797/, and sign up for our newsletter: https://www.buildinganddecor.co.za/register/.

You may also like