RP 21C

2K High Build Polymer Modified Cementitious Reinstatement Mortar

CLI RP 21C is a lightweight, polymer-modified repair mortar for high-build applications. It resists chloride ions and acidic gases like CO₂, ensuring durability. Made with preblended cements, graded sand, and additives, it offers excellent concrete compatibility and water repellency. Suitable for 10-40mm vertical and up to 25mm overhead applications.

Available Pack Sizes

11Kgs

Coverage

-

Application Areas

-

Technical Data Sheet(TDS)
MSDS
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Advantages

CLI RP 21C allows for high-thickness application in vertical and overhead situations. It has extremely low permeability, offering maximum protection against carbon dioxide and chlorides. The product bonds excellently to concrete substrates and is shrinkage compensated, ensuring long-term stability. Supplied in pre-weighted, pre-packed condition, CLI RP 21C requires only the addition of water at the site during mixing. It contains no chlorides, making it a safe choice for concrete repair.

Application Methodology

Prepare the repair area by cutting edges to at least 10mm depth to prevent feathering. Break out the area to a minimum of 10mm, clean thoroughly, and moisten the surface without leaving standing water.
Apply primer, then mix 2.75L of water with the supplied liquid polymer while gradually adding CLI RP 21C powder. Mix for 2-3 minutes, adding water if needed (max 3.25L). Apply the mortar to the primed surface using a trowel or gloved hand, ensuring thorough compaction, especially around exposed reinforcement.

Technical Specifications
# Characteristic Value
1 Compressive Strength (N/mm²) 3 days: 12
7 days: 16
28 days: 20
2 Water Absorption (ml/m²/sec) 10 minutes: 0.01
2 hours: 0.005
3 Coefficient of Thermal Expansion (°C) 7-12 x 10^-6
4 Flexural Strength (N/mm², 28 days) 4.5
5 Tensile Strength (N/mm², 28 days) 1.7
6 Setting Time (hours) Initial setting: 2
Final setting: 5
7 Fresh Wet Density (kg/m³) Approximately 1600
Data Reliability

All technical data provided in this document are based on laboratory tests. Actual performance may vary due to factors beyond our control.

Regional Compliance

Product specifications may vary based on local regulations. Please refer to the local Product Data Sheet for precise information.

Legal Disclaimer

The information and recommendations regarding the application and end-use of Carbolink products are provided in good faith based on our current knowledge and experience. Due to variations in materials, substrates, and actual site conditions, no warranty of merchantability or fitness for a specific purpose can be inferred. The user must determine the product's suitability for the intended application. Carbolink reserves the right to change the properties of its products. All proprietary rights of third parties must be observed. Orders are subject to our current terms of sale and delivery. Always refer to the most recent local Product Data Sheet, available upon request.

Guaranteed Reliability

We design our materials for exceptional lifespan and unwavering reliability.

Unbeatable Value

Exceptional Performance at an Outstanding Price

Certified Quality

Meeting Industry Standards for Performance and Safety