Mapei Ultralite Flex Technical Data Sheet

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Ultralite® Flex One-component highperformance lightweight cementitious adhesive with no vertical slip, fair deformability, extended open time. Very high yield, good trowellability and excellent back-buttering capacity for ceramic tiles and stone CLASSIFICATION ACCORDING TO AS ISO 13007.1 ULTRALITE FLEX is a C2TE-class cementitous (C), improved (2), slip-resistant (T), extended open time (E), adhesive.

WHERE TO USE

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Bonding all types of ceramic tiles and mosaics (doublefired, single-fired, porcelain, klinker, terracotta, etc.) on uneven internal and external substrates. Bonding stable natural stone not susceptible to staining on internal and external surfaces. Bonding thin porcelain tiles without reinforcing mesh. For further details consult the Technical Notebook “Systems for the installation of thin porcelain tiles”. Also suitable for spot bonding insulating materials such as expanded polystyrene, expanded polyurethane, Rockwool, Eraclit®, soundproofing panels, etc.

SOME APPLICATION EXAMPLES

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Bonding ceramic tiles (double-fired, single-fired, porcelain, klinker, ceramic and glass mosaic, etc.), stone (if dimensionally stable in damp conditions) and thin porcelain tiles on conventional substrates, such as: — cementitious screeds — heated screeds — cementitious render or lime-mortar render — gypsum-based plaster (after applying PRIMER G or ECO PRIM T PLUS) — plasterboard, pre-cast panels, fibre-cement panels — waterproofing membranes such as MAPELASTIC SMART, MAPELASTIC AQUADEFENSE and MAPEGUM WPS. Laying small format tiles in swimming-pools and basins Laying ceramic and natural stone on old floors (in ceramic, marble, etc.). Bonding ceramic and stone on balconies, terraces and paved roofs.

1300 733 000

TECHNICAL CHARACTERISTICS ULTRALITE FLEX is a grey or white powder made from cement, selected graded sand, a high content of synthetic resin and special lightweight natural aggregates to make the mix lighter according to a special formula developed in the MAPEI Research Laboratories as a contribution towards a sustainable building industry. The special technology used to manufacture ULTRALITE FLEX gives it a low density, a characteristic which offers two main advantages: 1. bags of ULTRALITE FLEX have the same volume but weigh less (13.5 kg) than bags of conventional cementitious adhesive (20 kg). This makes for easier handling and savings in transport costs 2. higher yield: yield is approximately 55% higher compared with conventional MAPEI cementitious adhesives: one 13.5 kg bag of ULTRALITE FLEX is sufficient to bond around the same area of flooring as as a traditional 20 kg bag. ULTRALITE FLEX mix has a low viscosity, which makes it easier and quicker to apply. In spite of the above characteristics, the thixotropic nature of ULTRALITE FLEX means there is no vertical slip when fixing on walls, even with large-sized tiles. The excellent back-buttering capacity and thixotropic consistency of ULTRALITE FLEX make this adhesive particularly suitable for bonding thin porcelain tiles without reinforcing mesh. Applying ULTRALITE FLEX using the double-buttering technique on flat substrates guarantees there are no gaps in the adhesive on the back of the slabs and prevents the risk of


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