Tile 600

Tile 600 It is a grey, powdered cementitious adhesive, based on a special blend of high-strength, fast-setting and fast-hardening cements, selected aggregates, synthetic resins and specific additives, specially formulated for bonding ceramic tiles as an overlay. Once mixed with water, it produces an adhesive with excellent workability, good flexibility and high adhesion to all types of substrates, particularly old ceramic or natural stone floor and wall coverings. The rapid development of initial mechanical strength ensures, under normal curing conditions, that the surface is safe for foot traffic approximately 4 hours after bonding. The extended open time allows for safe installation even in hot and draughty conditions. It is resistant to freeze-thaw cycles.
Tile 600 is classified as a Class C2 FE cementitious adhesive in accordance with EN 12004.

Instructions for use

Preparation for installation
Substrates must be sufficiently dry, strong, sound and even, clean and in good condition, free from oils and greases, dust, loose material and general dirt, and free from any paint film residues; they must also be adequately cured and free from significant shrinkage. As a general guide, traditional cement screeds with normal setting and hardening times must have been left to cure for at least 28 days; cement plasters or plasters based on mixed mortar must be left to dry for at least 14 days. Major surface imperfections and irregularities, such as unevenness, cavities, gravel pockets, eroded or deteriorated areas, must be repaired in advance and levelled using self-levelling compounds, such as Livellina 0-10 or Livellina 5-30, or with a suitable mortar, such as Multimix Evo, Restauro R2 or Rinnova. Particularly porous and crumbling substrates, and substrates with very low mechanical strength that are easily scratched, must be treated beforehand with Tile Primer or Multigrip.

Product preparation
Mix ‘Tile 600’ with 28–30% clean water (equivalent to 7.0–7.5 litres per 25 kg bag) as follows: pour almost all the required mixing water into a suitable container, then slowly add the powdered product, stirring the mixture as it forms using a low-speed drill fitted with a suitable mixing paddle. Once all the powder has been added, pour in the remaining water and mix until the mixture is homogeneous and free of lumps, taking particular care to remove any lumps of unmixed material from the sides and bottom of the container. Leave to rest for about 5 minutes, then stir briefly. The adhesive prepared in this way remains workable in the mixing container for about 45 minutes under normal conditions (at 20 °C); higher temperatures shorten the workability time, whilst lower temperatures extend it.

Installation instructions
In the event of direct sunlight, and consequently high substrate temperatures, it is advisable to dampen the substrate with a sponge to cool it down, without leaving any surface water. Apply the adhesive using a suitable notched trowel, the size of the notches depending on the type and size of the tiles to be laid, so as to ensure complete coverage of the back of the tiles. For better adhesion, it is advisable to first spread a thin, even layer of adhesive onto the substrate using the smooth side of the notched trowel, and then immediately apply a second layer of the desired thickness using the notched side. Apply the tiles by exerting adequate pressure and moving them slightly from side to side. When bonding tiles with a pronounced profiled back, particularly for external applications in areas subject to significant temperature fluctuations or freeze-thaw cycles, the ‘buttering-floating’ technique must be used: the mixed adhesive is spread onto the substrate using a notched trowel and then applied to the back of the tile with a trowel, levelling it flush with the raised ridges. Provided that a sufficient quantity of adhesive has been applied, this ensures that the adhesive-to-tile contact extends across the entire bonding surface (an essential condition for the installation of floor and wall coverings exposed to freeze-thaw cycles and significant water stress). The tiles must be laid only within the time window during which the applied adhesive is still fresh and tacky, i.e. before it has formed a surface skin. This time window is known as the adhesive’s ‘open time’, and depends on environmental conditions. The open time of Tile 600 is greater than 30 minutes at 23 °C and 50 % RH. High temperatures, direct sunlight and strong draughts, as well as a highly porous and absorbent substrate, can significantly reduce the open time, whilst low temperatures, high ambient humidity and non-absorbent substrates are favourable conditions for achieving a longer open time. If the open time has elapsed and the applied adhesive has formed a skin on the surface, it is necessary to go over it again with a notched trowel to break the skin and ‘refresh’ it. Under no circumstances should you wet the surface, as this would form a non-adhesive film of water that prevents the tiles from bonding to the adhesive, irreparably compromising the installation. Tiles should not normally be wetted before installation; only in the case of tiles with a dusty underside is it advisable to wash them by immersing them for a few seconds in clean water. For plaster substrates, pre-treatment with Tile Primer is absolutely essential.

Storage

Tile 600 It should be stored in a dry, sheltered place. It will keep for at least 9 months in its original, unopened bags. KEEP AWAY FROM MOISTURE

Warnings

Do not apply the product in the following cases:

• on wood and wood-based materials, metal surfaces, rubber, PVC, linoleum and derivatives.
• on substrates subject to continuous deformation, significant movement and heavy mechanical stress.

For applications on gypsum or anhydrite surfaces, the surface must be pre-treated with Tile Primer or Multigrip. If in doubt regarding this type of application, please consult our Technical Department.