Flow Composite Decking Cleaner

Bring your composite decking back to showroom standard with Flow Composite Decking Cleaner, a specialist cleaning solution made to penetrate textured surfaces, lift embedded grime, and restore original colour without harming the composite finish. Available in 5 L to suit both domestic and trade needs.

Why Flow Composite Decking Cleaner Is a Must

• Designed for composite materials: Formulated specifically for composite wood/plastic blend decking to remove dirt, algae, stains and organic build-up without damage. 

• Fast-acting & efficient: The cleaner works quickly; just apply, scrub, then rinse to reveal a clean, renewed surface.

• Safe for composites when used correctly: Non-corrosive, balanced formula that respects the structure and finish of composite boards. 

• Compatibility across tools: Can be applied via watering can, sprayer or brush to suit whatever tools you have.

• Clear, refreshed finish: Restores natural tones and cleans deep into grooves or textured surfaces.

When & Where It’s Ideal, and When to Use Other Cleaners

Use Flow Composite Decking Cleaner when:

• You have composite decking (capped or uncapped) that has accumulated dirt, algae, or mould.

• You wish to deep clean but retain the integrity and appearance of the composite surface.

• You want to avoid harsh chemicals or aggressive cleaners that might damage composite materials.

However:

• Do not use excessive pressure or high-pressure washing on uncapped composite boards, this may damage the surface.

• For extreme staining, burns, or deeply embedded oils, you may need a stronger degreaser or specialised stain remover (used with caution).

• Always test a small inconspicuous area first, especially on less common composite blends.

How to Use, Application Guide

1. Clear surface: remove furniture, debris, leaves.

2. Apply generously using a sprayer, watering can or brush.

3. Immediately scrub with a stiff brush to lift stains; don’t let it dry without agitation. 

4. Rinse thoroughly with clean water (or low-pressure rinse) to carry away loosened residue.

5. Repeat if needed: particularly on heavily soiled spots.

Be careful to avoid letting runoff contact sensitive plants or drainage without control.