Mapei Keraflex Adhesive

Mapei Keraflex Tile Adhesive extended informationPot life of mix: more than 8 hours.Open time: 30 minutes.Waiting time before grouting: – on walls: 4-6 hours; – on floors: 24 hours.Set to light foot traffic: approx. 24 hours.Ready for use: approx. 14 days.Colours: grey and white.Application: N° 4, 5, 6 or 10 notched trowel.EMICODE: EC1 Plus – very low emission.Storage: 12 months (25 kg bags), 24 months (5 kg bags).Consumption: 2-5 kg/m².Packaging: 25 kg bags and 4×5 kg Alupack boxes.Where to useInterior and exterior bonding of ceramic tiles, porcelain, natural stone materials (not sensitive to moisture) and mosaics on floors and walls. Also suitable for spot bonding of insulating materials such as expanded polystyrene, rock and glass wool, Eraclit® (wood-cement panels), sound-deadening/ reduction panels, etc.Bonding ceramic tiles, natural stone and mosaics on the following substratescement rendered walls;interior aerated concrete block walls;gypsum or anhydrite after having first applied Mapei Primer G or Mapei Eco Prim T Plus;underfloor heating installations;cement screeds;interior painted walls, as long as the paint is firmly anchored and resistant to alkalis;waterproof membranes of Mapelastic, Mapegum WPS or Mapelastic AquaDefense. Tiling over existing floor tiles, when primed with Eco Prim Grip Plus (Maximum tile size for tile on tile 300 x300 mm)Bonding small format tiles in swimming pools and water features.Bonding tiles to floors subject to heavy loading. RecommendationsDo not use Keraflex:On concrete subject to shrinkage.On metal surfaces.For installations that require an adhesive thickness greater than 5 mm.On walls and floors subject to strong movement or vibration.Mapei Keraflex Application ProcedurePreparation of the substrateThe substrate must be flat, free of contamination, loose particles, grease, oils, paints, wax, etc. Damp substrates can slow down the curing of Mapei Keraflex.Cement substrates should not continue to shrink after the installation of the ceramic tiles. Renders must cure at least 2 weeks and cement screeds must have an overall cure time of at least 3 weeks, unless they are produced with special binders such as Mapecem, Mapecem Pronto, Mapei Topcem or Topcem Pronto Concrete substrates must be at least 6 weeks old.Dampen with water to cool surfaces which have become heated from exposure to sunlight.Gypsum plaster and anhydrite screeds must be perfectly dry (max. residual moisture 0.5%), sufficiently hard and free from laitance. Mechanically abrade anhydrite screeds to remove all laitance, vacuum and prime. It is essential that they be treated with Mapei Primer G (neat) or Mapei Eco Prim T Plus (diluted 1:2 with water).Heated screeds must be commissioned in accordance with recognised technical regulations and the guidelines given in BS 5385 parts 3, 4 and 5MixingMix Mapei Keraflex with clean water until a smooth, lump-free paste is obtained. Leave to rest approximately 5 minutes and re- stir. Use 25-27 parts water for every 100 parts by weight of Keraflex Grey and 26-28 parts water for every 100 parts by weight of Keraflex White, which is equal to approx. 5.0-5.4 litres of water for every 20 kg of grey powder, and 5.2-5.6 litres of water for every 20 kg of White powder. Mixed this way, Keraflex has a pot life of approximately 8 hours.Applying the productKeraflex is applied to the substrate using a notched trowel. Choose a trowel that gives the correct coverage to the tile back, depending on the expected service conditions.To achieve good adhesion, spread an initial thin layer of Keraflex on the substrate using the flat side of the trowel. Immediately, apply Keraflex using a suitable notched trowel, depending on the type and size of the tiles (see “Consumption”).For external ceramic tiling, tiles greater than 300×300 mm, floors subject to heavy loads, when applying in swimming pools and water features, spread the adhesive on the back of the tile (back-buttering) in order to ensure complete coverage. Maximum bed depth of 5 mm.Installing TilesDo not wet the tiles before installing them. Only with very dusty backs is it recommended to dip the tiles in clean water.Allow to dry before fixingTiles should be installed with firm pressure to ensure good coverage with the adhesive.Ensure that a minimum coverage of 65-70% to the back of the tile is achieved in dry wall areas with 100%, as for as possible, in wet wall areas, on floors and in exteriors (walls and floors).In normal temperature and humidity conditions, the open time of Mapei Keraflex is approximately 30 minutes. Unfavourable weather conditions (strong sun, drying wind, high temperatures, etc.) or a highly absorbent substrate can reduce the open time to just a few minutes.It is therefore necessary that careful checks are made to ensure that a skin does not form on the surface of the spread adhesive.It is not recommended to wet the adhesive with water once a skin has formed because, the water will form an anti-adhesive film.If necessary, tiles should be adjusted within 60 minutes of installation.Spot-bonding insulating materialsFor spot-bonding sound-deadening or insulating panels, apply Mapei Keraflex with a trowel or a float.Grouting and movement jointsWall joints can be grouted after 4-8 hours and floor joints can be grouted after 24 hours with the relevant MAPEI cementitious or epoxy grouts, available in different colours. Expansion joints must be sealed with a suitable MAPEI sealant.Mapesil AC silicone sealant is available in matching colours to grout. Use Mapesil LM for natural stone.Set to light foot trafficFloors are able to take light foot traffic after approx. 24 hours.Technical CharacteristicsMapei Keraflex is a grey or white powder composed of cement and graded aggregates. It contains a high quantity of synthetic resins and special additives created according to a formula developed in MAPEI R&D Laboratories.A mortar with the following features is obtained when mixed with water:Easily workable.Highly thixotropic; Keraflex can be applied on a vertical surfaces without slump or tile slip, even with heavy tiles. Tiles can be installed from the top towards the bottom without using spacer pegs;Perfect adhesion to all materials normally used in building.Hardens with minimal controlled shrinkage.Extended open time.Water and frost resistant.Excellent bond strengthReady for useTiling installed with Keraflex must not be washed or exposed to rain for at least 24 hours and must be protected from frost and strong sun for at least 5-7 days. Surfaces are ready for use after approx. 14 days Swimming pools and water features can be filled after 21 days.CleaningTools and containers should be cleaned with plenty of water while Keraflex is still wet. Surfaces should be cleaned with a damp cloth, before the adhesive dries.ConsumptionBonding ceramic tiles:Mosaics and small sizes in general: 2 kg/m2Normal sizes: 2.5-3 ka/m2Large sizes, exterior floors: 5 kg/m2PackagingMapei Keraflex white and rev is available in 20 kg paper bags.StorageMapei Keraflex can be stored 12 months in a normal environment in original packagina. Protect from humidity.Mapei Keraflex product identityConsistency:powderColour:white or greyBulk density (kg/m3):1,300Dry solids content (%):100EMICODE:EC1 Plus - very low emissionMapei Keraflex application dataMixing ratio:25-27 parts water for every 100 parts by weight of Keraflex Grey, 26-28 parts water for every 100 parts by weight of Keraflex WhiteConsistency of the mix:smooth pasteDensity of the mix (kg/m3):1,500pH of mix:13Pot life:4-8 hoursApplication temperature range:from 5°C to 40°COpen time (according to EN 1346): 30 minutesAdjustability time:approx. 60 minutesReady for grouting on walls:after 8 hoursReady for grouting on floors:after 24 hoursSet to light foot traffic:24 hoursReady for use:14 daysMapei Keraflex final performancesBonding strength according to EN 1348 (N/mm7): - initial bonding (after 28 days): - bonding after heat exposure: - bonding after immersion in water: - bonding after freeze/thaw cycles: - 2.2 - 2.0 - 1.5 - 1.7Resistance to alkalis:excellentResistance to oils:excellent (poor to vegetable oils)Resistance to solvents:excellentTemperature when in use:from -30°C to 90°CMapei Keraflex Adhesive video Category: Tile Adhesives - Pallet Deals