Max-Strength Patio Cleaner

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Max-Strength Patio Cleaner

Max-Strength Patio Cleaner  

4Read Reviews
25.24Inc. VAT21.03Ex. VAT Next Day Delivery Available

“K-Seal Max-Strength Patio Cleaner” is an industrial acid patio cleaner designed to remove ingrained dirt and stubborn stains from a wide variety of paving surfaces.Read More

Product Code:78pc5
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Industrial Patio Cleaner

K-Seal Max-Strength Patio Cleaner is a professional patio cleaner. It is designed to remove ingrained dirt and stubborn stains from a wide variety of paving surfaces including:

  • Block paving
  • Concrete slabs
  • Concrete
  • Stone flags

This product is a strong, industrial patio and pavement cleaner. It is effective at cleaning and removing dirt and grime as well as moss algae. It can be used on natural stone, concrete and brickwork so it is perfect for cleaning down patios. This block paving cleaner can be used on light and dark coloured materials without affecting its colour.

Strong Patio Cleaner

Patio paving is used for the majority of modern homes, commonly used for paths, driveways and in gardens. No matter how much you spend on your patio, they all require maintenance to ensure they look at their best. This professional patio cleaner will make your paving slabs look like new.

Cleaning patio paving can be demanding if you are not using a high quality, industrial patio cleaner. That is where we come in, providing one of the best strong patio cleaners available. Cleaning your paving couldn’t be easier with our block paving cleaning products.

We go the extra mile to provide only the best products available to guarantee outstanding results. Our wealth of experience in developing block paving cleaning products ensures a first-class product. So, whether you need a concrete slab cleaner or a pavement cleaner, Kingfishers industrial patio cleaner will always impress.

How to use our Professional Patio Cleaner

For general cleaning, dilute K-Seal Cleaner to 3:1 with clean water, then liberally apply to the surface. Allow to "stand" for 10 minutes, sometimes scrubbing with a deck scrubbing brush or stiff bristle broom. Agitate the surface thoroughly with the brush and then rinse gently with a low-pressure garden hose (not pressure washer).

Note: When applying the product, only decant into a plastic bucket. Also, when diluting always put the water in first and then add our strong patio cleaner. For stubborn contaminants apply "neat" to the affected area and repeat the "agitate/rinse" process.

Important: K-Seal Block Paving Cleaner is an aggressive cleaning agent. It is imperative that the product is tested for surface compatibility on a small discreet area prior to full application.

Keep pets and children away until the surface has been rinsed. Always wear protective gloves, goggles and footwear when working with the product. We recommend that the cleaned surface is subsequently treated with a protective sealer such as K-Seal Total or Imprintseal.



Kingfisher “Max-Strength Patio Cleaner” is a professional high strength, hydrochloric acid-based surface cleaner with a powerful surfactant, formulated specifically for unsightly cleaning discolouration, ingrained dirt, cement, mortar splashes and other difficult to remove stains from a variety of external paved and mineral based surfaces.


• Kingfisher Bio-Wash
• Kingfisher Block Fill brush in grout for narrow joints
• Kingfisher K-Seal Total Matt Paving Sealer
• Kingfisher Ultimate Top Coat Gloss Paving Sealer
• Kingfisher Restore A Drive Coloured Sealant

Refer to these individual product data sheets for detailed application guidance published on our website


Domestic and light commercial cleaning of:

• Block Paving
• Slate
• Concrete and paving
• Brickwork

This product is NOT suitable for use on limestone, marble or sandstone.

If in doubt, please call Kingfisher Building Products on Technical Dept. Tel: 01229 869 100.


• Ease of application by yard brush or deck scrubbing brush
• Can be used where access for pressure washers is limited
• Removes most surface contaminants easily
• Removes black fungal staining (in conjunction with pressure washing)

Surface Preparation

1. Firstly: remove all vehicles from the vicinity and sweep up any excess dirt, mortar, weeds etc with a stiff yard brush.
2. Carefully protect any metal surfaces and paint work with polythene sheets and tape.
3. Remove plant pots and cover any vulnerable foliage.


a. For general cleaning: dilute Kingfisher Max-Strength Patio Cleaner by 2 or 3:1 with clean water in a suitable plastic bucket. Add the Max-Strength Patio Cleaner slowly to the water to avoid splashing.
b. Apply liberally to the surface by plastic watering can or deck brush / yard broom and allow to stand for around 10 to 15 minutes (scrubbing occasionally with a stiff bristled yard brush) – do not allow the area to dry out.
c. Agitate thoroughly with the brush then hose gently with large amounts of cold water. For stubborn contaminants Kingfisher Max-Strength Patio Cleaner can be applied “neat” to the affected area. Repeat agitation / rinsing process as required.
d. Black mould staining is an increasing problem, and this aggressive black spot fungus thoroughly embeds itself in the substrate and is both unsightly and almost impossible to remove. Feedback from contractors reveals that neither Kingfisher Max-Strength Patio Cleaner alone nor pressure washing alone will remove the most stubborn stains. However, using both methods in combination achieves excellent results in most cases: Apply Max-Strength Patio Cleaner neat to the affected areas and allow to activate partially evaporate. Then, instead of rinsing with a hose, clean with a rotary jet pressure washer at 2500 to 3000 psi.


Dilute only in a plastic bucket or container. ALWAYS add the product to water NEVER the water to the product. Before applying to the whole area always test on an inconspicuous part of the area first.


This product issupplied in a 5 Litre plastic. Container. Kingfisher Max-Strength Patio Cleaner is classed as an irritant. Store in original packaging in a cool dry place, out of direct sunlight and protected from frost. Keep out of reach of children.

Shelf Life

This product will lose its strength over time. It is preferable to use the product at the point of purchase or within 6 weeks of this date. The maximum shelf life is 12 months.

Health & Safety

• Contact with acids liberates toxic gas
• Harmful if swallowed
• Causes severe skin burns and eye damage
• Very toxic to aquatic life
• Keep out of reach of children
• Do not breathe mist, vapours or spray
• Do not get in eyes, on skin, or on clothing
• Wash skin thoroughly after handling
• Avoid release to the environment
• Wear protective gloves/protective clothing/eye protection/face protection
• IF SWALLOWED: rinse mouth and do NOT induce vomiting
• IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing
• Specific treatment (see instructions on this label)

Before using this product read the Material Safety Data Sheet which can be obtained at or by calling the Kingfisher Technical Dept. Tel: 01229 869 100.

The information given in this product data sheet is given in good faith, based on current knowledge and experience. It relates only to the specific material designated and may not be valid for such material used in combination with any other materials or in any process. Such information is to the best of the company’s knowledge and belief, accurate as of the date indicated.

All recommendations are made without warranty or guarantee, as to accuracy, reliability, or completeness since the conditions of use are beyond our control. It is the user’s responsibility to satisfy themselves as to the suitability and application of such information for their own use

Well pleased:

Ordered and delivered promptly. I have a very long, wide and steep block paving drive. I am a 75 year old lady, so making the most of isolation I am doing it section by section. I go out to admire the clean part with that I have yet to do. Can recommend this product.


Reviewed by

Really Great

Bought this to clean up my 5 year old block paving drive really great results before sealing with K-Seal


Reviewed by

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