Mortar fin, fara ciment, de culoare deschisa pentru finisarea tencuielilor dezumidifiante aplicate pe zidarii din piatra, caramida sau tuf MAPEI POROMAP FINITURA

Limba: Romana

35 afisari

Tip documentatie: Fisa tehnica

Pagina 1 - Mortar fin, fara ciment, de culoare deschisa pentru finisarea tencuielilor dezumidifiante...

p a a M r o u r t i o P Fin EN 998-1 IN COMPLIANCE WITH EUROPEAN STANDARD EN 998-1 GP-CS IV RENDERING AND PLASTERING MORTAR Salt-resistant, fine-texture transpirant skimming mortar, based on lime, for a natural finish on render WHERE TO USE Natural finish skim coats on macro-porous, de-humidifying render when restoring masonry on existing stone, brick and tuff buildings damaged by capillary rising damp and soluble salts. Natural finish skim coats on transpirant base render. Natural finish skim coats on lime-based render damaged by atmospheric agents, environmental conditions or ageing. Some application examples • Natural finish on internal/external coarse-textured, de-humidifying and insulating, macro-porous render when restoring masonry damaged by capillary rising damp and soluble salts. • Natural finish on coarse-textured de-humidifying render on masonry in lagoon areas or close to the sea. • Natural finish on new de-humidifying render or existing lime-based render o

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n stone, brick, tuff and mixed masonry, including on buildings of historical and artistic interest. • Natural finish on coarse-textured transpirant base render. TECHNICAL CHARACTERISTICS PoroMap Finitura is a ready-mixed, fine-textured, cement free, powdered skimming mortar made from lime, fine natural sand and special additives with very low emission of volatile organic compounds (EMICODE EC1 R Plus) according to a formula developed in the MAPEI research laboratories. This product is classified as GP according to EN 998-1 Standards: “General purpose mortar for internal/external render”, Category CS IV. When mixed with water in a suitable clean container, PoroMap Finitura forms a salt-resistant, natural-finish, transpirant skimming mortar with a plastic consistency which is easy to apply with a flat metal smoothing trowel both on vertical surfaces and ceilings. The properties of a mortar made with PoroMap Finitura, such as mechanical strength, modulus of elasticity and porosity

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, are very similar to those of a skimming mortar made using lime, lime-pozzolan or hydraulic lime as originally used in the construction of old buildings. Compared with these types of mortar, however, PoroMap Finitura has properties which makes it resistant to various aggressive chemical-physical phenomena, such as soluble salts, freeze-thaw cycles, the leaching action of rainwater, alkali-aggregate reactions and the formation of cracks caused by plastic shrinkage. Typical values are shown in the Technical Data table (see Application Data and Final Performance sections) which refer to the main characteristics of PoroMap Finitura at both the wet and hardened states. RECOMMENDATIONS • PoroMap Finitura is not recommended for structures with a high level of capillary rising damp or high concentrations of soluble salts (use products from the Silexcolor or Silancolor ranges). • PoroMap Finitura must be applied in 2 mm layers for each coat. apa M ro itur o P Fin • Do not use PoroM

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ap Finitura for pouring into formwork (use Mape-Antique Hi-Flow). • Do not use PoroMap Finitura to make consolidating slurry to inject into structures (use Mape-Antique I, Mape-Antique I-15 or Mape-Antique F21). • Do not use PoroMap Finitura for rendering. • Never add additives, cement or other binders (lime and gypsum) to PoroMap Finitura. • Do not apply thin coats of coloured paint or coating products which could affect the transpiration properties of PoroMap Finitura and, therefore, obstruct the evaporation of moisture in the masonry. Use products from the Silexcolor or Silancolor ranges, lime-based paint or water-repelling products, such as Antipluviol S or Antipluviol W. Finishing off the surface of PoroMap Finitura with a sponge float • Do not apply PoroMap Finitura if the temperature is lower than +5°C. APPLICATION TECHNIQUE Preparation of the substrate The surfaces to be skimmed must be clean, sound and free of dust and crumbling portions. Before skimming rend