5 Litre 25 Litre

Patio Black Spot Remover Plus

Rated 5.00 out of 5 based on 13 customer ratings
(13 customer reviews)

Patio Black Spot Remover Plus is a very powerful cleaning agent which specifically targets and removes lichen black spot. This product is x5 stronger than normal patio cleaners & black spot removers. Excellent for cleaning Indian sandstones and York stone – 5 star reviews on Truspilot and Amazon on this product. Also available in a super economical 25L container.

£41.99£119.99
£41.99£119.99
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Frequently asked questions

Yes, apply the product neat and allow to dwell for at least an hour – extend the dwell time if required. Repeat the process if required.

A build up that has taken 10 years to form will be more difficult to remove that 1 single years growth.

The black spot remover takes up to an hour to work. It can be less if the contamination is light.

Extend the dwell time if required.

Up to 25m2 from a 5 litre container. The product can also be bought in 25 litre containers.

They are lichens and they are almost impossible to remove by jet washing.

Pre wet the surface with clean water. Mist additional water over the patio or better still add more product.

Dwell time is very important – Extend the dwell time up to 4 hours, keep the product/surface wet and agitate periodically.

A single very long dwell time is actually more important than trying to repeat the process over multiple applications with shorter dwell times.

You have not carried out a test patch! By using a test patch you have the information to remove the black spot.

  • You may have exceeded the coverage rate of no more than 25m2 per 5 litre container.
  • Keep the surface wet the product is applied to visibly wet.
  • You will know the product is working as the black spot starts to turn white.
  • Dwell time is critical – extend up to 4 hours if required.
  • Do not let the product dry out.
  • Repeat the process for very heavy build ups.

All black spot removers, patio cleaners, moss & algae removers or weed killers have the potential to damage surrounding plants.

The way you apply a black spot remover is important in reducing any potential impact.

When wetting out the area to be treated also wet out the surrounding bedding pants and lawns. The product will be diluted if it mists over these areas and loses its strength.

The way a black spot is neutralised is by using more water to dilute. It has no residual effect when dry. It is a contact product and will not continue to work when dry, it is not a biocide.