Description
S4Prime CP 50 is a high-performance, cement-based, single-component primer containing polymer additives. It is designed to enhance the bonding between exposed concrete surfaces and plaster mortars. This primer prevents rapid water loss from cement and gypsum-based plasters, increases workability, and extends the working time, making it ideal for both interior and exterior applications.
✅ Advantages:
- Easy and fast to apply
- Provides high bonding strength
- Prevents rapid water loss of cement and gypsum-based plasters
- Increases the workability and working time of plasters
- Suitable for use on horizontal and vertical surfaces
📌 Application Areas:
- Indoors and outdoors
- On walls and ceilings
- Before the application of gypsum and cement-based plasters on exposed concrete surfaces
- Before ceiling plastering and applications on old surfaces
⚙️ Technical Specifications:
| Property | Value |
|---|---|
| Chemical Structure | Cement-based, polymer-added powder |
| Mixture Ratio | 8.00–10.00 L water / 25 kg powder |
| Density | ~1.5 g/cm³ |
| Working Time | 20 minutes |
| Consumption | 1.00–1.20 kg/m² |
| Application Temperature | +5°C to +30°C |
| Reaction to Fire | A1 |
🛠️ Application Instructions:
- Ensure the surface is dry, clean, and solid
- Mix with clean water until a homogeneous mixture is obtained
- Apply using a sponge roller
- For optimal results, apply two coats where necessary
- Allow 2–3 minutes of resting before use and remix for 1–2 minutes
⚠️ 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 frozen, melting, or surfaces at risk of rain or frost within 24 hours
🧽 Cleaning & Storage:
- Clean tools with 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





