Biokil Crown Mould Wash Concentrate 250ml
Biokil Crown Mould Wash Concentrate 250ml is backordered and will ship as soon as it is back in stock.
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Biokil Crown Mould Wash Concentrate 250ml – Pre-Treatment Biocide for Mould, Algae & Moss
Biokil Crown Mould Wash Concentrate is a professional-strength surface biocide designed to prepare interior and exterior surfaces by effectively removing mould, mildew, algae and moss prior to painting or waterproofing.
What it does
Formulated to eradicate mould, mildew, algae and lichen from porous and non-porous surfaces, it pre-treats substrates to ensure a clean, contamination-free base before coatings are applied. The product is suitable for use on masonry, render, tiles, wood and painted surfaces.
Economical and practical
The concentrate is typically diluted at 1:19 (1 part concentrate to 19 parts clean water). A 250 ml bottle yields up to 5 litres of working solution, covering around 50–60 m² depending on porosity. Heavy contamination may require a second application.
How to use
- Mix a working solution by combining 1 part concentrate with 19 parts clean water (1:19).
- Apply to affected areas using a brush, sponge or sprayer, ensuring surfaces are thoroughly wetted.
- Allow the treated area to dry completely. Typical drying time is 1–4 hours, depending on ambient conditions.
- If heavy contamination remains, re-apply and then re-check for dampness before painting or sealing.
Safety, suitability and tips
Suitable for internal and external surfaces including masonry, woodwork, tiles, patios, driveways and roofs. Do not use near watercourses. This product is designed to be used as part of professional mould control regimes when paired with Anti-Mould Emulsion or Mould Control Kits.
Technical specifications
- Pack size: 250 ml concentrate bottle (yields up to 5 litres working solution)
- Coverage (diluted): approximately 50–60 m² per batch, depending on surface porosity
- Drying time: 1–4 hours after application
- Dilution: Standard 1:19 (1 part concentrate to 19 parts water); heavier contamination may use 1:9
- Application method: Brush, sponge or sprayer
- Typical uses: Eradicating mould, algae, lichen and fungi on walls, ceilings, patios and tiles; substrate pre-treatment before paint, render, waterproof coatings or condensation control systems

Description
Description
Biokil Crown Mould Wash Concentrate 250ml – Pre-Treatment Biocide for Mould, Algae & Moss
Biokil Crown Mould Wash Concentrate is a professional-strength surface biocide designed to prepare interior and exterior surfaces by effectively removing mould, mildew, algae and moss prior to painting or waterproofing.
What it does
Formulated to eradicate mould, mildew, algae and lichen from porous and non-porous surfaces, it pre-treats substrates to ensure a clean, contamination-free base before coatings are applied. The product is suitable for use on masonry, render, tiles, wood and painted surfaces.
Economical and practical
The concentrate is typically diluted at 1:19 (1 part concentrate to 19 parts clean water). A 250 ml bottle yields up to 5 litres of working solution, covering around 50–60 m² depending on porosity. Heavy contamination may require a second application.
How to use
- Mix a working solution by combining 1 part concentrate with 19 parts clean water (1:19).
- Apply to affected areas using a brush, sponge or sprayer, ensuring surfaces are thoroughly wetted.
- Allow the treated area to dry completely. Typical drying time is 1–4 hours, depending on ambient conditions.
- If heavy contamination remains, re-apply and then re-check for dampness before painting or sealing.
Safety, suitability and tips
Suitable for internal and external surfaces including masonry, woodwork, tiles, patios, driveways and roofs. Do not use near watercourses. This product is designed to be used as part of professional mould control regimes when paired with Anti-Mould Emulsion or Mould Control Kits.
Technical specifications
- Pack size: 250 ml concentrate bottle (yields up to 5 litres working solution)
- Coverage (diluted): approximately 50–60 m² per batch, depending on surface porosity
- Drying time: 1–4 hours after application
- Dilution: Standard 1:19 (1 part concentrate to 19 parts water); heavier contamination may use 1:9
- Application method: Brush, sponge or sprayer
- Typical uses: Eradicating mould, algae, lichen and fungi on walls, ceilings, patios and tiles; substrate pre-treatment before paint, render, waterproof coatings or condensation control systems
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