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Patio Cleaner Xtreme60 - Quickly Removes Black Spot, Algae and Lichen

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StarStarStarStarStar 27 Reviews|(5/5)
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Customer Reviews

Sprayed onto limestone and never had to do a thing. Instantly the dirt and stains were removed. It's excellent and so easy to use. So happy!!

By Mohammed Ali Benhamou

fantastic product, well worth the purchase.

By amanda demel

I've tried every product to clean my concrete yard and came across this product on line so thought I'd give it a try wow! fantastic and the concrete looks great cleaned all the algea and stubborn black marks and moss fantastic can't rave enough about it thankyou

By amanda demel From Cumbria

I have my patio back! Remarkable result, it looks really good. Now I can stay on top of it and keep it this way.

By Terry Stoakes From Charfield, Glos

First class cleaning product.Eradicated long standing black spots on my patio pavers leaving them looking like new. Easy to apply but note to follow carefully the application instructions.No need for high pressure washing.


Applied the solution to a very grubby patio,washed it off and looked better than when first layed,thank you

By Mark Oliver From Macclesfield

Takes all the misery out of patio maintenance Just spray on and it comes up like new

By tom cronin From market drayton

Great product! Would highly recommend to use this cleaner on natural stone products

By Jake Garbett From Proud gardens

This was the only product that I found that brought the Indian Sandstone on my Patio back to the condition it was when it was laid 10 years ago. The original colour was totally obliterated and it had a lot of black spots. I did it last year and finished it with a Smartseal's natural stone seal which has meant it is still a good colour and is cleanable with a good hose down.

By Ruth Herbert From Hertfordshire

Really great product. In the past we've pressure washed, and scrubbed the patio and nothing has cleaned it, so we left it for a few years. I spoke to Smartseal and they recommended this product and it does exactly what it's supposed to do, patio like new again.

By Nigel Kingswood From Derbyshire

Quickly removed the majority of stains on first application. Black spots removed from concrete slabs on second clean. Amazing transformation of a very tired and dirty patio. Highly recommend this cleaner. Well worth the small extra cost involved

By Chris Billingham From Cambridgeshire

This is a brilliant product. This is our second year of using it and we needed so much less this year as the patio had not got anywhere near as dirty as in the past. Invest in a sprayer and it goes a very long way. I am extremely pleased and would recommend this product to anyone with a "black" patio.

By Bea Williams

Really good product. In the past we've pressure washed, steam cleaned and scrubbed the patio and nothing has cleaned it. This product does exactly what it's supposed to do.

By Michael Ivory

Worked very well without any scrubbing. Power washed first, but patio was still 'grubby'. Applied cleaner next day and slabs became 'original' clean while I watched.

By James White

Customer is over the moon with the job I did thanks to the smart seal products A++++

By Mark Garside From Stoke on trent

Excellent product, got rid of all the black spot that the Karcher couldn't reach!

By Jennifer Joynson

Excellent patio cleaning product. Finally found something that does what it promises.

By John Sellers

this patio cleaner is a fantastic product and so easy to apply! after only 1 hour, 90% of black spots had disappeared this has taken all the drudgery out of patio maintenance many thanks

By tom cronin From shropshire

Used this product on some Sandstone Window Cills and was very impressed. The product started to remove the 'black spot' & dirt without the need to even agitate it. Recommend this for those stubborn stains.

By chris walters From Swansea Clean & Seal

Amazing - works like magic. 10/10 & thanks for the telephone advice before I purchased

By Mark Yoxon

Extreme x for black spots worked a treat arrived next day 10 out of 10 Colour enhance and sealant worked a treat very good really happy with result 10 out of 10

By Stephen From Romford

Great product got all my black lichen off, my stone patio is like new.

By Mervyn From wrexham

A very effective product. I used a watering can with a rose with large holes so probably used up more than I needed to. A fine rose would be useful. Well worn slabs now look as new.

By Michael From Malvern wells

Can't tell you how good this stuff is if only had the opportunity to upload before and after pictures Offered to clean a friends patio as a start to my business the difference is amazing they are so pleased with the results as am I.

By Nick From Branston

Great product for very little work watching it remove black spot/lichen before your eyes is very satisfying goes along way when applied with a sprayer.

By J Hague From Cheshire Cleansing

The patio cleaner said 'powerful' and it certainly was. It got most of the lichen off but the difference it made to the colour of th Indian Stone was amazing. I should really have ordered a larger tin but having tried other products in the past and finding them to be useless I did not want to risk buying a larger quantity. As it happens I need not have worried, it is very good. Delivery time was quick.

By Joan Danvers From North Yorkshire

I used the Patio clean Xtreme 60 on my Indian stone patio and I'm delighted with the results. Not only did it remove the black spots but brought the colour back too. Best Regards Martin Warner

By Martin Warner From Hemel Hempstead
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Powerful and Effective Patio Cleaner

Remove black spot from block paving, concrete or natural stone on patios

PatioClean Xtreme60 is a fast acting, high performance patio cleaning product, with four powerful active ingredients. PatioClean Xtreme60 offers the simple way to keep any patio clean often avoiding the need for pressure washing. Simply dilute 1:1 and apply to a wet surface by watering can or sprayer. It is important that the patio remains wet for 1 hour. Then wash away with water from hose or pressure washer. For areas of heavy soiling, scrub into surface or re-apply.

PatioClean Xtreme 60 is a powerful cleaning product, which combines with a biocide to slow down future contamination.

For Removal of

  • Black Spot
  • Algae and Lichens
  • Moss
  • Surface Grime

5 litres of product will clean and treat approximately 40 m2 of flagstone, natural stone, or block paved patios. Wear appropriate safety wear at all times. see technical page for more information.



Sweep away loose debris and areas with heavy build up of moss. Firstly wet the surface of the patio with water. Dilute PatioClean Xtreme60 at a ratio of 1:1. Then apply liberally using a watering can or sprayer, leave on the surface for approx 60 minutes or longer before cleaning off.

It is important the patio remains wet throughout during 60 minute period, as the product becomes inactive once dry. Most ingrained organic matter and grime will be removed after one application, but sometimes a second application may be required to remove all black and white spot algae.

Health & Safety

PatioClean Xtreme60 contains chlorine as an active ingredient and will stain fabrics and sensitive materials. Take care to avoid contact with fabrics during application. Toxic to aquatic life, wear protective gloves and goggles at all times. Patio Xtreme60 can cause skin burns, avoid contact with eyes. Keep out of the reach of children