Mapei Isolastic 50

Isolastic 50: Latex Additive for Improved Cement-Based Adhesives

Isolastic 50 is a pinkish-white, highly elastic polymer latex meant for enhancing the performance and flexibility of cement-based adhesives like Kerabond Plus and Adeflex Trade. Here’s a comprehensive overview:

Where to Use

• Isolastic 50 + Kerabond Plus: Suitable for interior and exterior bonding of ceramic tiles, stone materials, and large-size tiles.
• Isolastic 50 + Adeflex Trade: Designed for interior bonding of large-size ceramic tiles, natural stone, and mosaics.

Technical Characteristics

• Composition: Consists of a water dispersion of an extremely elastic polymer.
• Enhancements: Improves adhesion to substrates, deformability, and impermeability post-hydration when mixed with cement-based adhesives.

Recommendations & Limitations

• Avoid Usage: Not recommended for specific stone types prone to moisture-related deformation or staining. Not suitable for quick service requirements in areas like swimming pools, reservoirs, or refrigeration rooms.
• Climate Consideration: In hot and dry climates, the adhesive might have a shorter open time, forming a surface skin requiring re-trowelling.

Application Procedure

• Substrate Preparation: Emphasizes flat, sound, cured, particle-free, and clean substrates. Specific curing times prescribed for cementitious substrates and special binders.
• Mixing Ratio: Clearly defined ratios for mixing Isolastic 50 with Kerabond Plus or Adeflex Trade, ensuring proper preparation.
• Mix Preparation: Instructions to stir the mixture to obtain a smooth, lump-free paste before application.

Adhesive Application & Tile Installation

• Application Process: Using notched trowels to achieve adequate adhesive coverage. Recommendations for achieving good adherence and addressing shorter open times.
• Tile Installation: Aligns with the recommendations set for the base adhesive, emphasizing attention to open time variations.

Post-Application Instructions

• Grouting & Sealing: Timelines provided for grouting wall and floor joints with specific MAPEI grouts and sealants.
• Set to Light Foot Traffic: Specifies timelines for achieving light foot traffic readiness and full use of surfaces post-application.

Packaging & Storage

• Packaging: Available in 6.6 kg or 25 kg drums.
• Storage: Can be stored for 24 months in original packaging, safeguarded against frost.

Safety & Technical Data

• Safety Instructions: Emphasizes referring to the latest Safety Data Sheet for comprehensive safety information.
• Technical Specifications: Offers details on the mixture’s pH, density, pot life, application temperature, open time, and final performances concerning adhesion strength, resistance to elements, deformability, and temperature range.

Compliance & Final Caution

• Compliance: Aligns with certain standards regarding product identity and application properties.
• Caution: Advises users to ensure suitability for intended applications and emphasizes user responsibility for any consequences resulting from product use.

The technical data and recommendations provided in this product data sheet serve as indicators, subject to confirmation through long-term practical application. For accurate and specific application, users are encouraged to ensure suitability beforehand. The user holds full responsibility for the outcomes of product usage.