Description
S4Wall 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 apply
- Provides high bonding strength
- High flexibility
- Resistant to thermal shocks, water, and frost
📌 Application Areas:
- For bonding masonry elements like brick, pumice, and stone
- Interior and exterior applications
- On vertical surfaces
⚙️ Technical Specifications:
| Property | Value |
|---|---|
| Chemical Structure | Cement-based, pumice-added powder |
| Powder Density | ~1.50 g/cm³ (±0.1) |
| Water Mixing Ratio | 6.00–6.50 L water / 25 kg powder |
| Compressive Strength (EN 1015-11) | ≥ 5 N/mm² |
| Bond Strength (EN 1015-12) | ≥ 0.4 N/mm² |
| Capillary Water Absorption | ≤ 0.40 kg/m²·min0.5 |
| Water Vapor Permeability (EN 1015-19) | ≤ 25 |
| Thermal Conductivity (EN 1745) | ≤ 0.33 W/mK |
| Pot Life | 1–2 hours |
| Consumption | 9.00–11.00 kg/m² (depending on the size of masonry elements) |
🛠️ Application Instructions:
- Ensure the surface is clean, smooth, and solid
- Mix with clean water until a homogeneous mixture is achieved
- Apply with a trowel to the vertical sides of the masonry element
- Press the adhered masonry element with a rubber mallet
⚠️ Warnings:
- Do not apply in weather conditions below +5°C or above +30°C
- Avoid application on frozen, melting, or wet surfaces
🧽 Cleaning & Storage:
- Clean tools with solvent immediately after use
- Store in a dry, moisture-free area, unopened, for up to 12 months
🧯 Safety:
- Wear protective clothing, gloves, and masks during application
- Avoid contact with eyes and skin
- Keep out of reach of children
- Consult the Safety Data Sheet (SDS) for more details
