Mapei Keraset

Mapei Keraset | Cementitious adhesive for ceramic tiles

Mapei Keraset, a normal (1) cementitious (C) adhesive of class C1, is a remarkable solution designed for internal and external bonding of ceramic tiles and mosaics, single-fired and double-fired tiles for floors, walls, and ceilings. Its versatile application extends to various substrates and conditions, offering a reliable bond for tiles in diverse settings.

Where to Use

Keraset finds its utility in several applications:

• Ceramic Installation: Bonds ceramic mosaics, single-fired, and double-fired tiles on different surfaces.
• Substrate Suitability: Appropriate for traditional render or cement mortar and ordinary or reinforced cementitious screeds, provided they are adequately cured and dry.

Technical Composition

The adhesive’s composition comprises cement, selected sands, synthetic resins, and specialized additives developed in MAPEI’s Research Laboratories. When mixed with water, Keraset transforms into a workable mortar that adheres impeccably to various construction materials.

Recommendations and Limitations

Certain recommendations and usage limitations must be observed:

• Usage Restrictions: Avoid using Keraset on specific surfaces like wood, gypsum board, or metal.
• Tile Thickness: Suitable for tiles requiring an adhesive thickness of up to 5 mm.
• Environmental Considerations: Environmental factors like temperature and humidity can influence the adhesive’s open time and application.

Application Procedure

For optimal results, follow precise guidelines:

• Substrate Preparation: Substrates must be cured, strong, and free from debris, oil, or grease.
• Mix Preparation: Achieve an even, lump-free paste by mixing Keraset with water in specified ratios.
• Application Technique: Apply the adhesive with a notched trowel, ensuring proper coverage and adherence.

Tile Installation and Post-Application Instructions

Careful tile installation and post-application precautions are crucial:

• Adhesive Open Time: Constantly monitor the adhesive’s open time to ensure it remains fresh for tile placement.
• Curing Period: Protect installed tiles from water or rain for at least 24 hours and avoid exposure to freezing weather or direct sunlight for 5-7 days.

Grouting, Sealing, and Readiness for Use

Grouting of wall and floor joints with MAPEI-specific grouts can be done after specific time frames. The surfaces achieve light foot traffic readiness in approximately 24 hours and full readiness in about 14 days.

Technical Data and Performance

Keraset’s technical data outlines its application specifications, such as mix ratios, adhesive consistency, and performance characteristics in terms of adhesion, resistance to environmental factors, and aging.

Packaging, Storage, and Safety Instructions

Supplied in 25kg paper bags, Keraset has a shelf life of 12 months when stored in a dry place. Safety instructions emphasize protective gear and precautions due to the adhesive’s irritant nature.

Final Performances

Keraset exhibits excellent resistance to dampness, aging, solvents, and oils. However, it shows limited resistance to acids and alkalis and operates efficiently within a specific temperature range.

Conclusion

Keraset stands out as a versatile, cementitious adhesive ideal for a wide range of tiling applications, offering robust adhesion and reliability. Its comprehensive guide assists professionals in achieving effective tile installations across diverse substrates and conditions, ensuring durability and long-term performance.