Mapei Isolastic Tile Adhesive, HDPE Barrel

Technical Characteristics: Isolastic is a very fluid, pinkish-white liquid composed of a water dispersion of an extremely elastic polymer, which, when mixed with cement based adhesives, improves adhesion to all substrates, deformability and impermeability, once hydration has taken place. Recommendations: Kerabond, Kerabond T, Kerafloor or Adesilex P10 mixed with Isolastic must never be used for:
Installing stone slabs subject to moisture movement
Iinstalling marble or natural stone subject to efflorescence or staining from moisture
Installing tiles in reservoirs, swimming pools or refrigeration rooms that need to be put into service quickly
Installing on metal, rubber, PVC, and linoleum surfaces
At temperatures lower than +5°C or higher than +40°C.
In dry, hot climates, the open time of an adhesive made by mixing Isolastic into Kerabond, Kerabond T, Kerafloor or Adesilex P10 is shorter. A skin may form on the surface, which must then be removed and fresh adhesive applied.Application Procedure: Preparing the substratesAll substrates receiving Kerabond, Kerabond T, Kerafloor or Adesilex P10 + Isolastic must be flat, mechanically strong, free from loose parts, grease, oil, paint, wax, etc. Precast concrete elements or in situ concrete must be cured for at least 3 months in favourable weather conditions. Cementitious substrates must not be subject to shrinkage once the tiles have been installed, therefore in warm weather renders should be cured at least one week per centimetre of thickness. Cementitious screeds must have an overrall cure of at least 28 days unless they have been made with the special MAPEI binders for screeds such as Mapecem, Mapecem Pronto, Topcem or Topcem Pronto. Surfaces that are too hot due to exposure to direct sunlight should be cooled by dampening them with water.Gypsum substrates and anhydrite screeds must be perfectly dry (maximum residual moisture 0.5%), sufficiently hard and free from dust. They must always be treated with Primer Gor Eco Prim T. Areas subject to extreme damp must be primed with Primer S.As a general rule, refer to the relative MAPEI technical documentation about substrate preparation before repairing cracks in substrates, consolidating rapid-drying screeds and levelling off installation surfaces.