Baumit AntiSulfat is a specialist substrate preparation fluid designed to treat salt-contaminated masonry prior to renovation or replastering. Formulated as an aqueous solution, it chemically converts harmful salts such as sulfates and chlorides into stable, insoluble compounds, helping to prevent ongoing salt migration and surface damage.
This makes it particularly effective when dealing with efflorescence or salt-laden substrates, ensuring a more stable base for subsequent plaster or render systems. Quick and easy to apply by brush, spray or pouring, Baumit AntiSulfat is a reliable first step in achieving long-term performance in salt-affected walls.
Key Benefits
• Chemically neutralises harmful salts within masonry
• Ideal for treating efflorescence and salt-contaminated substrates
• Improves durability of subsequent plaster and render systems
• Quick and simple application by brush, spray or pour
• Suitable for renovation and new build preparation
Technical Specification
| Property | Value |
|---|---|
| Product Type | Substrate preparation fluid |
| Composition | Water, barium phosphate |
| Colour | Transparent |
| Density | approx. 1.04 kg/dm³ |
| Consumption | approx. 0.5 – 0.8 kg/m² (depending on substrate) |
| Application Method | Brush, spray or pour |
| Pack Size | 5 kg canister |
| Storage | Store sealed, dry, cool and frost-free |
| Shelf Life | Up to 2 years |
| Minimum Application Temperature | +3°C |




