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Patio Black Spot Remover is currently the only product developed specifically to remove those hideous black spots and restore the natural colour of garden stonework. Patio Black Spot Remover for Artificial Stone will remove black spots from all pre-cast patio slabs including Marshalls, Bradstone, Haddonstone and other cement-based slabs. Patio Black Spot Remover will also resurrect those original colours you thought were lost forever. The coverage rate is based on a patio that is 3 years old. The older the stone, the more treatments required. Carry out a trial slab to determine the coverage on your stonework. To maintain your garden stonework and stop the return of the black spots, buy and apply our Patio Black Spot Preventer annually. This will kill any black spot spores before they have the chance to germinate. Patio Black Spot Preventer will also remove green algae. Supplied in liquid form, ready for use. Pour into a 5-7 Litre Hozelock garden pneumatic sprayer. Biodegradable. Coverage – not exceeding 5 SQM per 1L. Dwell time: leave for 2 hours. No need to scrub. Remove using a pressure washer with a fan jet (Vario). Removes all forms of organic growth including green and red algae, white fungi, black spots and moss. Available in 2 and 4 litre containers.
Try before you buy with our complimentary stone samples.
No minimum order required-get exactly the quantity you need
Enjoy fast,free delivery on all orders, right to you location.
Order just what you need with our flexible split pack option.
Our stone paving is calibrated to a uniform thickness, ensuring straightforward, hassle-installation, and it's ethically sourced with minimal environmental impact, so you can confidently support sustainable practices in every project
Our stone paving is resistant to weathering and wear, ensuring it will look great for years to come,and with its natural resistance to staining and algae growth, minimal upkeep is all you'll need.
Each slab is unique, with beautiful color variations and textures that bring a touch of nature to your project, and they're versatile enough for everything from garden patios to commercial walkways.
Wow, a fantastic company. Great choice of products. Really competitive prices. Very fast delivery and all staff very kind, polite and so helpful. The whole experience has been perfect. Can't recommend them enough. You will not be disappointed. All round great service.
Gillian Edbrooke, 5 months ago
Great tiles. Service was good. Product was excellent. Communication between the seller and the customer is great.
Hazel Whiskin, Jul 19, 2024
Fabulous product have used before and would definitely use again. Fabulous customer service, had to contact about delivery and the communication was second to none. Slabs looks better than the picture!!
Charlotte Dickenson, 4 months ago
All stones was well packed and shipped. All stones was well packed and shipped carefully. Stone quality is also very good. My garden looks awesome.
Prateek, Jun 13, 2024
I ordered from the stonemart for the first time and I'm impressed! Amazing customer service, fast delivery, and great product. I ordered 3 pallets with 20 paving slabs. After my order was complete, they got in contact with me that it would be cheaper to order 2 pallets containing 30 paving slabs. They refunded me the difference within a couple of days. They have gained a loyal retuning customer. Thank you.
Hinderik Bos, a year ago
Great service, great price. Delivered on time. Communication through WhatsApp was something I have never used with suppliers but gave me a direct contact to a person rather than email or being passed round a call center. Will definitely use them again.
Sam Smith, a year ago
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