Zinsser Mould Killer & Remover

Zinsser Mould Killer & Remover is a powerful, ready-to-use spray solution that eliminates mould, mildew, algae and fungal growth on interior surfaces. Designed for use in high-humidity areas like kitchens, bathrooms and laundry rooms, it prepares stained surfaces for painting by ensuring they are clean, sanitised and free from biological contamination.

The formula contains a fast-acting fungicide that penetrates the surface and kills mould at the source. Whether you're working on tiles, plaster, wallpaper, timber trims or skirting boards, this mould remover helps improve the performance and longevity of any primer or topcoat applied afterwards.

Delivered in a handy trigger spray bottle, it's perfect for targeting awkward areas and tackling stubborn staining before decorating.

Surface Preparation

• Test on an inconspicuous area before use

• Clean surface thoroughly with Zinsser Universal Degreaser & Cleaner

• Spray directly onto affected area and leave to dry

• Do not rinse – allow product to dry fully before applying paint or primer

• Use in a well-ventilated area

• Always read label instructions before use

Technical Data

Type: Water-based biocidal mould remover
Finish: Clear liquid spray
Size Available: 750ml trigger spray
Coverage: Up to 15m² per litre
Touch Dry: Approx. 30–60 minutes (depending on conditions)
Recoatable/Decoratable: Once fully dry
Application Method: Trigger spray (manual)
Compatible Surfaces: Wall and floor tiles, wallpaper, timber, plaster, masonry
Odour: Mild
Use Restrictions: For internal use only
HSE Approval: HSE 9934GB & 9934NI (Surface Biocide approval)
Biocidal Content: Benzalkonium Chloride 0.61%, 2-Phenylphenol 0.244%
Shelf Life: 2 years (from manufacture date)
Storage: Keep in a cool, dry place away from food and children

Directions for Use

1. Shake well before use

2. Test on a small area first

3. Clean surface with degreaser

4. Spray Zinsser Mould Killer directly onto mould or mildew

5. Allow to dry thoroughly – do not wash off

6. Paint or prime over once surface is completely dry

7. Clean hands after use; do not ingest or inhale spray mist

8. Dispose of container responsibly after use

Data Sheets

Zinsser Mould Killer & Remover - TDS

Zinsser Mould Killer & Remover - MSDS