Description
S4Wall CG 21 is a high-performance, cement-based mortar designed for bonding masonry elements like pumice, stone, and brick. It is polymer-enhanced for high bonding strength and flexibility, making it ideal for both indoor and outdoor applications. This mortar is resistant to thermal shocks, water, and frost, ensuring long-lasting performance in a variety of construction environments.
✅ Advantages:
- Easy to apply
- Provides high bonding strength and flexibility
- Resistant to thermal shocks, water, and frost
- Prevents mold and moisture buildup
📌 Application Areas:
- For bonding masonry elements like pumice, stone, and brick
- Indoor and outdoor applications
- On vertical surfaces
⚙️ Technical Specifications:
| Property | Value |
|---|---|
| Chemical Structure | Cement-based, polymer-added powder |
| Powder Density | ~1.50 g/cm³ (±0.1) |
| Water Mixing Ratio | 5.75–6.25 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





