1. Preparing the Substrate
Surfaces where the material is to be laid must be smooth and consistent, and dry and clean. They should be levelled to create a white background, using specificproducts for levelling layers thicker than 2mm. To keep the levelling material in good condition,the environmental temperature must be between 5ºC and 30ºC.
2. Laying the Mosaics
To ensure that the mosaics are correctly laid, we recommend the use of white One-Flex, a high-performance cement-based adhesive which is specially designed for laying terracotta mosaics, stone mosaics, glass mosaics and porcelain tiles. Use the smooth side of a notched trowel to spread the adhesive evenly over the wall and then “comb” it with the notched side (minimum notch size 3mm). The adhesive should not be spread all at one go over large surfaces to prevent it from drying before the mosaics are laid.To lay the mosaic sheets, press them down evenly with a rubber trowel and make sure that the distance between each sheet is the same as the joint between the mosaic chips to ensure a uniform appearance and joints of the same width. If there is a particularly big joint between the sheets, separate some chips from the mesh backing with a sharp instrument and rotate them to ensure more subtle gaps and an optimum random pattern. Before grouting them, leave the adhesive to dry for at least 24-48 hours. After this drying time has elapsed, clean the surface with a moist cloth and leave to dry before grouting.
3. Grouting (applicable only for mosaics with joint)
We recommend the use of Colorstuk Rapid, a fast setting grouting mortar available in different colours, with an excellent mechanical resistance, low water absorption and anti-fungal qualities. Colorstuk in black or anthracite should not be used, as it may be difficult to clean the tile joints. In the case of scratch-sensitive polished surfaces, we recommend the use of Colorstuk special n.Application: Spread the grouting material using a rubber trowel, filling in the joints completely. Use the same trowel to remove any excess material.
Before the grouting material sets, any remains must be removed with a sponge or cloth. The grouting material must not be allowed to dry too much before doing this or it will hinder the cleaning of the mosaics. This operation must be repeated at least two or three times to ensure perfectly clean mosaics, rinsing the surface thoroughly with water, using a sponge or cloth. The use of detergents and abrasives such as cleaning powders may cause irreparable damage to the sections. If you have any doubts, contact the manufacturer.