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Patio Black Spot Preventer 2.5L for Artificial & Natural Stone


Patio Black Spot Preventer 2.5L for Artificial & Natural Stone
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Patio Black Spot Preventer 2.5L for Artificial & Natural Stone


Key Points

  • Available for delivery anywhere in the mainland UK.
  • Order for collection at Bagshot, Bybrook Barn, Chelmsford or Shepperton.
  • Returns Policy
    Click here for more information on returning this product

Product Details

  • For use on both artificial and natural stone
  • Targets the black lichen spores, killing them before they can germinate, avoiding the use of harmful and impractical pesticides
  • Also kills green and red algae that grows on garden paths, patios and other decorative stonework
  • Can be used with a simple pneumatic garden type sprayer
  • Removes the needs for power washing
  • Offers complete protection when used annually
  • This product will treat a maximum area of 50 square metres


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black spot remover for natural stone
Q. Is this product safe for fish and plants?

Answered by Longacres 11/7/2018

We would not recommend getting this anywhere near fish or plants. 

Black Spot Preveenter
Q. when does the poreventer need to be applied and what area does it cover

Answered by Longacres 11/6/2019

Needs to be applied after the use of Black spot remover when all the spots have gone. This is a one time application and will cover 50sqm