Flow Sodium Hypochlorite - High-Strength Multi-Purpose Cleaner & Disinfectant

Unleash serious cleaning and sanitising power with Flow Sodium Hypochlorite Solution, an industrial-grade oxidising agent that works fast to remove stains, eliminate odours, brighten surfaces, disinfect, and restore clarity to outdoor areas. 

Why Flow Sodium Hypochlorite Is a Powerful Choice

• Deep stain removal & whitening: Penetrates and breaks down embedded grime, mould, algae, and organic discolouration to restore brightness on hard surfaces. 

• Odour control & disinfection: Acts as a powerful disinfectant, killing bacteria, mould spores, viruses, and neutralising unpleasant smells.

• Fast acting: Works in minutes under proper conditions; especially effective on patios, driveways, walls, decking, and other exterior surfaces. 

• Versatility: With correct dilution, this product is useful in many cleaning applications, from outdoor hard surfaces to stain spot treatment. 

Key Specifications & Safety Notes

• Appearance / pH: Yellowish-green liquid, high pH (strongly alkaline) 

• Hazard classification: Causes severe skin burns and eye damage; very toxic to aquatic life.

• Storage & Shelf Life: Store in a cool, dry place away from direct sunlight. Unopened shelf life is about 2 years. 

• Corrosively & chemical reactivity: Avoid contact with acids (which release toxic chlorine gas); reacts with metals, strong acids, reducing agents, and some organic compounds. 

• Environmental caution: Extremely harmful to aquatic environments. Prevent runoff into drains, ponds or waterways. 

When & How to Use Safely & Effectively

Typical Uses:

• Deep cleaning patios, drives, walls, decking, concrete

• Removing moss, algae, mould, organic staining

• Sanitising surfaces and eliminating odour sources

• Spot treating stubborn stains

Recommended Techniques:

1. Dilution: Use an appropriate dilution (e.g. 1 part sodium hypochlorite to 4–5 parts water, or stronger for tough stains) depending on application. 

2. Pre-clean area: Remove loose debris, dirt or material so the solution contacts the surface directly.

3. Apply evenly: Use a sprayer, watering can or brush to coat the surface.

4. Dwell time:  Let it sit for 10 to 60 minutes (depending on soil, stain severity) but prevent it from drying out.

   Use our quantity calculator

   To work out what you need

   

   *Select Units Metric - Meters & Centimetres Imperial - Feet & Inches

   * Length (m)

   * Width (m)

   * Depth (cm)

   We recommend a depth of at least 3-4cm

   Calculate Quantity (Coverage (Approximations from a 3 to 4cm depth)
   1 Bulk Bag = 8 to 10 Square Metres)