Patio Black Spot Preventer For All Stone Types 2.5 Litre
Patio Black Spot Preventer For All Stone Types 2.5 Litre
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Keep your patios, paths, and decorative stonework looking their best all year round with our powerful Patio Black Spot Preventer.
Specially developed to stop lichen spores from germinating, this long-lasting treatment prevents staining and discolouration before it starts. Suitable for all stone types, it’s the ultimate black spot preventer for homeowners who want lasting protection without constant scrubbing or pressure washing.
Each application treats up to 50m² and is designed for use within 11–12 months of using Patio Black Spot Remover. When applied annually, it prevents black spots from returning, while also clearing away green and red algae within 3–5 days of treatment. The result is cleaner, safer patios and pathways with minimal effort.
Unlike standard cleaners, our patio black spot preventer works proactively to protect your surfaces from future damage, maintaining the natural colour and appearance of your stonework. It’s a safe, effective way to stop lichen and algae build-up while keeping slippery areas under control.
Patio Black Spot Preventer is pet friendly. We recommend you keep pets off the area whilst applying the product. Once dry, it’s instantly safe for pets to walk on the area.
Application Instructions
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Choose the right day – Apply on a dry day when no rain is forecast for at least 48 hours.
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Mix the solution – To treat 20m², fill a 5–7 litre garden sprayer with 3 litres of water. Add 1 litre of Patio Black Spot Preventer (always add the Preventer to water to avoid bubbling).
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Apply generously – Spray evenly across an area no larger than 20m² (4×5 metres) until saturated.
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Repeat as needed – For larger areas, mix fresh solution and repeat until all paving is covered.
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Allow to dry – Do not rinse off; simply let the surface dry naturally.
Maintenance Tip: If green algae reappears in shaded or north-facing areas during the 12 months after treatment, simply reapply to those spots for ongoing protection and safety.
Delivery
Delivery
Standard delivery to the UK typically takes up to 3 business days.
Delivery to Europe typically takes 7 business days.
Worldwide typically takes 7 - 15 days.
Returns
If you need to make a return, you are welcome to do so within 28 days. Please contact us to arrange a return.
See conditions and procedures on our shipping terms page. If your order is not delivered by the estimated delivery time, please contact our friendly customer service for assistance!
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BRITISH BUSINESS
We are a registered British business that you can trust.
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FAST UK DELIVERY
All orders are delivered by Royal Mail within 3 working days.
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TRACKING NUMBER
A tracking number will be provided with your order for easy monitoring and timely updates.
