---
product_id: 83556688
title: "SmartSeal Patio Cleaner Xtreme - 2 x 5L - Powerful Black Spot Remover Patio Cleaner & Rapid Mould Lichen and Algae Remover for Cleaning Stone Paving, Concrete, Sandstone, Porcelain, Slate & Granite"
brand: "smartseal"
price: "VT101422"
currency: VUV
in_stock: true
reviews_count: 9
category: "Smart Seal"
url: https://www.desertcart.vu/products/83556688-smartseal-patio-cleaner-xtreme-2-x-5l-powerful-black-spot
store_origin: VU
region: Vanuatu
---

# Fast-acting formula 2 x 5L concentrated solution Multi-surface stone & concrete safe SmartSeal Patio Cleaner Xtreme - 2 x 5L - Powerful Black Spot Remover Patio Cleaner & Rapid Mould Lichen and Algae Remover for Cleaning Stone Paving, Concrete, Sandstone, Porcelain, Slate & Granite

**Brand:** smartseal
**Price:** VT101422
**Availability:** ✅ In Stock

## Summary

> ✨ Transform your patio from grimy to gleaming—fast, flawless, and fuss-free! 🧼

## Quick Answers

- **What is this?** SmartSeal Patio Cleaner Xtreme - 2 x 5L - Powerful Black Spot Remover Patio Cleaner & Rapid Mould Lichen and Algae Remover for Cleaning Stone Paving, Concrete, Sandstone, Porcelain, Slate & Granite by smartseal
- **How much does it cost?** VT101422 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/83556688-smartseal-patio-cleaner-xtreme-2-x-5l-powerful-black-spot)

## Best For

- smartseal enthusiasts

## Why This Product

- Trusted smartseal brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Effortless Application:** Dilutable 1:1 or neat; use with sprayer or watering can for quick coverage.
- • **Long-Lasting Protection:** Inhibits regrowth of algae, mould & fungi to keep patios pristine longer.
- • **Rapid Restoration Power:** Eradicates black spots, algae & lichen in minutes for a like-new patio.
- • **Trusted by Homeowners & Pros:** Highly rated with thousands of users praising its unmatched cleaning strength.
- • **Versatile Surface Compatibility:** Perfect for sandstone, granite, concrete, porcelain, slate & more.

## Overview

SmartSeal Patio Cleaner Xtreme is a powerful, fast-acting outdoor cleaning solution designed to remove black spots, algae, lichen, mould, and grime from a wide range of stone and concrete surfaces. Supplied as two 5L concentrated bottles, it can be diluted or used neat for heavy stains, covering approximately 40m² per 5L. Safe for multiple patio materials including sandstone, granite, porcelain, and slate, it not only cleans but also inhibits future fungal growth, making it a top choice for maintaining pristine outdoor spaces.

## Description

Great prices on your favourite Gardening brands, and free delivery on eligible orders.

Review: This stuff is fantastic! - I seldom leave reviews but felt compelled to write this one. I had a new garden path laid three years ago, at some considerable cost. It is a pale Indian sandstone. We started developing immediate black spot problems and three years later, you could not see some of the stones for the black, they were completely covered. Power washing didn't touch it, and the path looked terrible, with a cloudy finish and masses of black spot all over it. This morning I received this product, put the protective gear on, and thought I will spray neat on the really bad bits and then do a 1:1 dilution and do the rest, as I was worried I wouldn't have enough. As I started to spray the neat product, I did about five stones, and then turned back, and good god, genuinely, the black spot had gone, literally gone. I've now done the rest of the path, with a mix of neat and diluted, and it's like new. This is one of the few products I've ever bought which actually does exactly what it says it does. I will be buying more and using it when required if it comes back. If your patio or path has black spot, honestly don't hesitate, this stuff is brilliant. Totally and utterly worth it. Update, bought again this year, due to the mild winter I had really bad black spot again, I power wash first and use this simply for thr black spot. Put it on in a 50/50 dilution, and the black spots just disappeared , bringing it up like new. It’s like a magic eraser. Brilliant product.
Review: Wear gloves and use a good sprayer. - Very impressive results and surprised given the disappointing results of other "patio cleaners" that I had tried. This product, although expensive does the job, well recommended.

## Features

- Powerful Patio Cleaning Solution: Patio Cleaner Xtreme is used for cleaning stone patios fast. The powerful heavy duty patio cleaner is often used as a patio black spot remover & lichen remover to rapidly clean and transform the look of patios covered in dirt, algae, lichen and grime. The multi-surface patio cleaner will quickly clean paving slabs made from concrete, slate, granite, limestone, porcelain and sandstone.
- Multi-Purpose Cleaner for Patios: The versatile black spot patio cleaner is also classified as an algae remover & lichen remover. Apart from cleaning patios, it is also used as a decking cleaner or, more often these days, as a composite decking cleaner. Depending on what your patio is made of, it will also work just as effectively as a porcelain patio cleaner, block paving cleaner or a general paving slab cleaner.
- Fast-Acting & Easy To Use: Patio Cleaner Xtreme is easy to apply by watering can or sprayer and usually diluted 1:1 with water, but can be used neat for heavily soiled patios. It is the ultimate green algae remover & black spot patio cleaner that ensures a fast & effective patio cleaning process. 5 Litres will clean approximately 40m2. A second application of the outdoor surface cleaner may be required for very dirty patios.
- The Ultimate Patio Cleaner: If you have a patio that looks like it needs a good clean, Patio Cleaner Xtreme is the go-to patio cleaning solution that can make an old, grubby patio look like new in no time at all. Furthermore, it is just as effective as a concrete cleaner for concrete paving slabs or a natural stone cleaner for sandstone, limestone, slate & travertine patios.
- Outstanding Cleaning Results: Patio Cleaner Xtreme is very effective at removing green algae, black spot lichen, mildew, fungi, mould, and organic stains without damaging your patio. The powerful limestone cleaner & slate cleaner contains a unique blend of cleaning surfactants, specially formulated as a patio cleaning alternative to Sodium Hypochlorite solutions. It will also inhibit further growth and spread of lichens, algae & other fungal growth.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07JFC137L |
| Best Sellers Rank | 2,726 in Garden ( See Top 100 in Garden ) 25 in Moss Control |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,957) |
| Date First Available | 11 Jun. 2019 |
| Item volume | 5 Litres |
| Language | English |
| Manufacturer | Smartseal UK Ltd |
| Manufacturer reference | sm-patioex-parent |
| Part number | sm-patioex-parent |

## Product Details

- **Brand:** SmartSeal
- **Item form:** Liquid
- **Liquid volume:** 5 Litres
- **Manufacturer:** Smartseal UK Ltd
- **Unit count:** 10000.0 millilitre(s)

## Images

![SmartSeal Patio Cleaner Xtreme - 2 x 5L - Powerful Black Spot Remover Patio Cleaner & Rapid Mould Lichen and Algae Remover for Cleaning Stone Paving, Concrete, Sandstone, Porcelain, Slate & Granite - Image 1](https://m.media-amazon.com/images/I/416fEf94g6L.jpg)
![SmartSeal Patio Cleaner Xtreme - 2 x 5L - Powerful Black Spot Remover Patio Cleaner & Rapid Mould Lichen and Algae Remover for Cleaning Stone Paving, Concrete, Sandstone, Porcelain, Slate & Granite - Image 2](https://m.media-amazon.com/images/I/511Ee5KYoGL.jpg)
![SmartSeal Patio Cleaner Xtreme - 2 x 5L - Powerful Black Spot Remover Patio Cleaner & Rapid Mould Lichen and Algae Remover for Cleaning Stone Paving, Concrete, Sandstone, Porcelain, Slate & Granite - Image 3](https://m.media-amazon.com/images/I/51Jn1YiDIFL.jpg)
![SmartSeal Patio Cleaner Xtreme - 2 x 5L - Powerful Black Spot Remover Patio Cleaner & Rapid Mould Lichen and Algae Remover for Cleaning Stone Paving, Concrete, Sandstone, Porcelain, Slate & Granite - Image 4](https://m.media-amazon.com/images/I/51YTEuUBrUL.jpg)
![SmartSeal Patio Cleaner Xtreme - 2 x 5L - Powerful Black Spot Remover Patio Cleaner & Rapid Mould Lichen and Algae Remover for Cleaning Stone Paving, Concrete, Sandstone, Porcelain, Slate & Granite - Image 5](https://m.media-amazon.com/images/I/51gIL6xJ2lL.jpg)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ This stuff is fantastic!
*by L***B on 26 April 2019*

I seldom leave reviews but felt compelled to write this one. I had a new garden path laid three years ago, at some considerable cost. It is a pale Indian sandstone. We started developing immediate black spot problems and three years later, you could not see some of the stones for the black, they were completely covered. Power washing didn't touch it, and the path looked terrible, with a cloudy finish and masses of black spot all over it. This morning I received this product, put the protective gear on, and thought I will spray neat on the really bad bits and then do a 1:1 dilution and do the rest, as I was worried I wouldn't have enough. As I started to spray the neat product, I did about five stones, and then turned back, and good god, genuinely, the black spot had gone, literally gone. I've now done the rest of the path, with a mix of neat and diluted, and it's like new. This is one of the few products I've ever bought which actually does exactly what it says it does. I will be buying more and using it when required if it comes back. If your patio or path has black spot, honestly don't hesitate, this stuff is brilliant. Totally and utterly worth it. Update, bought again this year, due to the mild winter I had really bad black spot again, I power wash first and use this simply for thr black spot. Put it on in a 50/50 dilution, and the black spots just disappeared , bringing it up like new. It’s like a magic eraser. Brilliant product.

### ⭐⭐⭐⭐⭐ Wear gloves and use a good sprayer.
*by D***N on 29 January 2026*

Very impressive results and surprised given the disappointing results of other "patio cleaners" that I had tried. This product, although expensive does the job, well recommended.

### ⭐⭐⭐⭐ Does what it says it will do
*by C***D on 13 November 2024*

Great product, does the job, got rid of all the leaf stains from my patio and all the green algae. Just wish it also got rid of rust marks but never mind.

## Frequently Bought Together

- SmartSeal Patio Clean Xtreme 5L *BUY 1, GET ONE LESS THAN HALF PRICE!* Powerful, Concentrated Patio Cleaner & Black Mould Spot Remover for Natural Stone, Block & Paving Slabs, Concrete, Flagsto
- Spear & Jackson 5LPAPS 5 Litre Pump Action Pressure Sprayer
- Everbuild 405 Path & Patio Seal | Long Lasting, Solvent Free & Acrylic Coating for Paths, Patios, Natural Stone & Block Paving - 5 Litre

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.vu/products/83556688-smartseal-patio-cleaner-xtreme-2-x-5l-powerful-black-spot](https://www.desertcart.vu/products/83556688-smartseal-patio-cleaner-xtreme-2-x-5l-powerful-black-spot)

---

*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-02-22*