Antisulphate - Biokil Crown - Salt Neutraliser

Surface Salt Neutraliser for Brick, Concrete & Masonry Substrates Biokil Crown Antisulphate is a ready-to-use surface treatment formulated to neutralise harmful salts — particularly sulphates, nitrates, and chlorides — commonly found in masonry affected by rising damp. Applied before re-plastering or tanking, it helps prevent salt migration into new finishes, thereby reducing the risk of efflorescence, plaster failure, and staining. It is ideal for use on brick, concrete, blockwork, and stone after damp-proofing or membrane removal. Key Features & Benefits Neutralises Salt Contamination: Chemically converts soluble salts to reduce long-term damage and staining. Improves Plaster Adhesion: Prevents reactivation of salts that could compromise new finishes. Ready to Use: Supplied pre-mixed for quick and easy application with brush or spray. Essential for Re-Plastering: Use after installing DPC systems or removing old contaminated plaster. Wide Substrate Compatibility: Suitable for brickwork, concrete, render, and stone. Product Details Type: Salt neutralising solution Form: Liquid – ready to use Colour: Clear / pale amber Coverage: Approx. 4–6m² per litre (depending on porosity) Packaging: 5L and 25L containers Application Method: Brush, roller, or low-pressure spray SKU: BCANTISUL5 / BCANTISUL25 Application Instructions Surface Prep: Remove all loose plaster, dust, and debris from the wall. Substrate must be dry or lightly damp – not wet. Apply Evenly: Apply Biokil Crown Antisulphate liberally using a brush, roller, or spray, ensuring full coverage. Allow to Penetrate: Leave to soak into the surface. Do not rinse off. Allow to dry completely before re-plastering or tanking. Repeat if Necessary: For heavily contaminated areas, a second coat may be applied once the first is dry. Limitations Not suitable as a standalone damp-proof course — use in conjunction with a full DPC or membrane system. Do not apply to painted or sealed surfaces without prior removal. Health & Safety Wear gloves and eye protection during application. Avoid contact with skin and eyes. Ensure good ventilation in enclosed spaces. Refer to the Safety Data Sheet (SDS) for full handling and safety guidance.