Description
S4Therm TB 20 is a high-performance, cement-based adhesive for thermal insulation boards, containing polymer additives. This product is designed for bonding EPS, XPS, and rock wool boards to mineral-based surfaces, providing excellent bonding strength and ensuring stability in various environmental conditions.
✅ Advantages:
- Easy to apply
- Provides high bonding strength
- High flexibility and resistance to cracking
- Resistant to thermal shocks, water, and frost
- Suitable for both interior and exterior applications
- Prevents condensation and moisture buildup
- Lightweight, reducing the load on the structure
📌 Application Areas:
- Indoors and outdoors
- On mineral-based surfaces like cement-based plaster, brick, gas concrete, and exposed concrete
- For bonding applications of EPS, XPS, and rock wool thermal insulation boards
⚙️ Technical Specifications:
| Property | Value |
|---|---|
| Chemical Structure | Cement-based, polymer-added powder |
| Powder Density | ~1.50 gr/cm³ (±0.1) |
| Granulation | ≤1% (TS EN 1015-1) |
| Water Mixing Ratio | 6.00–6.50 L water / 25 kg powder |
| Compressive Strength (EN 1015-11) | ≥ 6.0 N/mm² |
| Bond Strength to Thermal Insulation Board (TS EN 13494) | ≥ 0.08 N/mm² |
| Capillary Water Absorption (TS EN 1015-18) | ≤ 0.40 kg/(m²·min0.5) |
| Water Vapor Permeability (TS EN 1015-19) | ≤ 15 |
| Thermal Conductivity (TS EN 1745) | 0.55 W/mK |
| Pot Life | Up to 3 hours |
| Full Curing Time | 28 days |
| Consumption | 4.00–5.00 kg/m² (for 10 mm thickness) |
🛠️ Application Instructions:
- Ensure the surface is clean, smooth, and solid
- Mix with clean water until a homogeneous mixture is achieved
- Apply with a notched trowel to the back of the insulation board and press it into place
- Ensure that at least 40% of the surface of the insulation board is covered with adhesive
- Allow mortar to rest for 5-10 minutes before use
⚠️ Warnings:
- Do not apply in weather conditions below +5°C or above +30°C
- Avoid application in humid, rainy, or windy conditions
- Do not apply on wet, frozen, or melting surfaces
🧽 Cleaning & Storage:
- Clean tools with clean water 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
