Sika Platocrete N

Usage: Sika Platocrete N is primarily used for:

• Bonding Old and New Concrete: It creates a strong bond between old and new concrete surfaces, ideal for repairs, overlays, and resurfacing works.
• Surface Preparation for Concrete Coatings: Prepares concrete surfaces to ensure proper adhesion of coatings, paints, or sealers.
• Concrete Repairs: Used in the repair of cracks, damaged areas, or spalled concrete, providing a reliable bonding interface.
• Enhancing Bond Strength: Particularly effective in increasing the bond strength between old concrete and new concrete during construction or renovation projects.
• Floor and Wall Applications: Suitable for use in flooring systems, walls, and other concrete elements requiring surface bonding.

Application:

1. Surface Preparation:
   • Clean the surface to remove any dirt, dust, oil, grease, or loose material. The surface must be sound and free from contaminants to ensure maximum adhesion.
   • For concrete surfaces, roughening the substrate (via mechanical methods) can improve the bond between Sika Platocrete N and the surface.
2. Mixing:
   • Sika Platocrete N is ready-to-use and can be applied directly without any dilution. If required, it can be mixed with water in small quantities for more fluid consistency depending on the application.
3. Application Process:
   • Apply Sika Platocrete N using a brush, roller, or spray equipment, ensuring an even coat over the surface to be bonded.
   • For bonding old and new concrete, apply Sika Platocrete N to the prepared surface and allow it to dry until it becomes tacky before placing the fresh concrete.
   • In some cases, it can be applied in multiple layers, particularly when bonding different types of concrete or surfaces with varying porosity.
4. Drying and Curing:
   • Allow the product to dry and become tacky before applying fresh concrete or coatings. Full curing time depends on environmental factors, but typically, it takes around 24 hours to fully cure.

Coverage:

• Coverage per coat: The approximate coverage for Sika Platocrete N is around 2 to 3 m² per liter, depending on the substrate, roughness, and application method.
• For 10 liters of Sika Platocrete N, you can cover approximately 20 to 30 m² per coat.
• Coverage may vary based on the surface texture and porosity, and multiple coats may be required for highly porous surfaces.

Advantages:

1. Enhanced Bonding Strength: Sika Platocrete N significantly improves the adhesion between old and new concrete, ensuring strong and durable connections.
2. Improved Surface Finish: It acts as a surface retarder, helping achieve a smooth, even finish when applying new concrete or coatings.
3. Easy to Use: Ready-to-use, easy to apply, and requires no mixing or dilution for most standard applications, saving time on-site.
4. Cost-Effective: Provides an economical solution for enhancing bond strength and improving the quality of concrete repairs and resurfacing projects.
5. Versatile Application: Suitable for a wide range of applications, including bonding concrete, floor resurfacing, repair works, and preparing surfaces for coatings.
6. Reduced Crack Formation: The enhanced bond strength provided by Sika Platocrete N reduces the chances of cracking between the old and new concrete layers, ensuring the durability of repairs.
7. Long-Lasting Protection: It contributes to the longevity of structures by ensuring proper bonding and reducing the likelihood of water infiltration at joints or repaired areas.
8. Time-Saving: Quick and easy application, reducing labor costs and time during the construction or repair phase.
9. Suitable for Various Concrete Types: Works well with different types of concrete, including precast, poured-in-place, and shotcrete.
10. Environmental Benefits: With reduced material wastage and efficient bonding, it can contribute to more sustainable construction practices.