DescriptionS4Wall CM 20 is a high-performance, cement-based mortar containing pumice additives. It is designed for bonding masonry elements such as brick, pumice, and stone. This mortar provides excellent bonding strength, high flexibility, and is resistant to thermal shocks, water, and frost, making it ideal for use in both interior and exterior applications.✅ Advantages:Easy to applyProvides high bonding strengthHigh flexibilityResistant to thermal shocks, water, and frost�� Application Areas:For bonding masonry elements like brick, pumice, and stoneInterior and exterior applicationsOn vertical surfaces⚙️ Technical Specifications:PropertyValueChemical StructureCement-based, pumice-added powderPowder Density~1.50 g/cm³ (±0.1)Water Mixing Ratio6.00–6.50 L water / 25 kg powderCompressive Strength (EN 1015-11)≥ 5 N/mm²Bond Strength (EN 1015-12)≥ 0.4 N/mm²Capillary Water Absorption≤ 0.40 kg/m²·min0.5Water Vapor Permeability (EN 1015-19)≤ 25Thermal Conductivity (EN 1745)≤ 0.33 W/mKPot Life1–2 hoursConsumption9.00–11.00 kg/m² (depending on the size of masonry elements)��️ Application Instructions:Ensure the surface is clean, smooth, and solidMix with clean water until a homogeneous mixture is achievedApply with a trowel to the vertical sides of the masonry elementPress the adhered masonry element with a rubber mallet⚠️ Warnings:Do not apply in weather conditions below 5°C or above 30°CAvoid application on frozen, melting, or wet surfaces�� Cleaning & Storage:Clean tools with solvent immediately after useStore in a dry, moisture-free area, unopened, for up to 12 months�� Safety:Wear protective clothing, gloves, and masks during applicationAvoid contact with eyes and skinKeep out of reach of childrenConsult the Safety Data Sheet (SDS) for more details
