DCI 090 Multiset is a normal cement based adhesive with excellent workability and extended open time, for designed for use in interior thin-bed applications and it is mixed with either water or latex admixture. DCI 090 Multiset is a C1T class cementitious (C), normal (1), slip resistance (T), adhesive. DCI 090 Multiset is a grey or white-coloured powder made from cement, selected graded sand, synthetic resin and special additives which can be used on walls and floors for thin bed installations of tiles and stone material.
Field of Application
• For interior use
• For floors and walls
• For thin-bed installations of all types of tiles
• For thicknesses up to 6 mm
• Can be fortified with latex admix for improved performance
COVERAGE / CONSUMPTION
Preparation of the support
The support must be totally dried, mechanically hard, free of oils, grease, wax, paint, and lose particles. All substrates must not be subject to shrinkage after the installation of the tiles. During the spring and summer period, renders must be cured for at least one week for every centimeter of thickness, and cement screeds must be cured for at least 28 days unless they have been made with DCI special binders for screeds such as Screed 80, Level S10, or with Level S30. Gypsum substrates or anhydrite screeds must be perfectly dry (max. residual moisture 0.5%), sufficiently hard, and free of dust. They must be treated with DCI Grip Primer or Beton Contact, while areas subject to high humidity must be treated with Tile Adhesive Primer.
Preparing the product
DCI 090 Multiset must be mixed with clean water to obtain a homogenous mixture free of lumps. After 5-10 minutes resting, it must be mixed again. The mixture is then ready to be used. The demand of water to be used is approximately 24-26 parts per 100 parts (by weight) of DCI 090 Multiset (equal to ca. 6 -6.5 liters of water). The mixture, produced in this way, is workable for at least 4 hours.
C) Applying the product
DCI 090 Multiset is applied with a notched trowel onto the substrate. Choose a trowel that will give coverage to the back of the tiles of at least 60-70% for walls or for indoor light foot traffic.
Installation of the tiles
It is unnecessary to wet the tiles before installation; however, the backs are very dusty, they should be wiped in clean water. The tiles are installed under firm pressure to ensure good contact with the adhesive. DCI 090 Multiset open time in normal temperature and humidity is 20-30 minutes. Unfavorable weather conditions (high temperature, strong sun, drying wind) or high absorbent substrate may shorten the open time and, in some cases quite drastically, to just a few minutes. For this reason, there should be continuous controls to see if the adhesive is still fresh to the touch or has formed a surface skin. If a surface skin is formed, the adhesive should be retroweling. It is not suitable to wet the adhesive when it has formed a skin because a non-adhesive film will be formed instead of dissolving the skin. Adjustment of the tiles, if necessary, has to be carried out within the first 60 minutes following installation, after which time adjustment will become problematic. The tiles installed with DCI 090 Multiset must not be subject to rain for at least the first 24 hours and must be protected from frost and direct sun for at least 5-7 days after application.
Applying the grout
The grout installation can be done after a minimum of 8 hours curing time at 23°C and 50% relative humidity for walls and after a minimum of 24 hours curing time at 23°C and 50% relative humidity for floors. Conditions may change the setting and curing time significantly.