---
product_id: 109966991
title: "– Preventer – All Stone Types – Prevents Staining and Discolouration – Stops Slippery Surfaces – Removes Green and Red Staining – Spray and Leave Patio and Driveway Cleaner – 2.5L"
brand: "patio black spot"
price: "R$1662"
currency: BRL
in_stock: true
reviews_count: 7
url: https://www.desertcart.com.br/products/109966991-preventer-all-stone-types-prevents-staining-and-discolouration-stops-slippery
store_origin: BR
region: Brazil
---

# long-lasting 12-month protection removes green & red algae 50m² coverage shield – Preventer – All Stone Types – Prevents Staining and Discolouration – Stops Slippery Surfaces – Removes Green and Red Staining – Spray and Leave Patio and Driveway Cleaner – 2.5L

**Brand:** patio black spot
**Price:** R$1662
**Availability:** ✅ In Stock

## Summary

> 🛠️ Keep your outdoor spaces flawless—because your patio deserves VIP treatment!

## Quick Answers

- **What is this?** – Preventer – All Stone Types – Prevents Staining and Discolouration – Stops Slippery Surfaces – Removes Green and Red Staining – Spray and Leave Patio and Driveway Cleaner – 2.5L by patio black spot
- **How much does it cost?** R$1662 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/109966991-preventer-all-stone-types-prevents-staining-and-discolouration-stops-slippery)

## Best For

- patio black spot enthusiasts

## Why This Product

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

## Key Features

- • **Eco-Friendly & Trusted:** Biodegradable, acid-free formula trusted by UK garden centers for safe, effective cleaning.
- • **Ultimate Stone Defense:** Protects all stone types from black spots and lichen for a pristine outdoor look.
- • **Generous Coverage Power:** Covers up to 50 square meters per application—perfect for large patios and driveways.
- • **Extended Protection Cycle:** Apply within 12 months post-removal to maintain spotless, slip-free outdoor spaces.
- • **Fast-Acting Algae Removal:** Eliminates green and red algae within 3-5 days, restoring vibrant stone surfaces.

## Overview

Patio Black Spot Preventer is a powerful, eco-friendly solution designed for all stone types, offering up to 50 square meters of coverage per 2.5L bottle. It prevents black spot infestations, removes green and red algae within days, and provides up to 12 months of protection to keep patios and driveways clean, safe, and visually stunning.

## Description

Preventer – All Stone Types – Prevents Staining and Discolouration – Stops Slippery Surfaces – Removes Green and Red Algae – Spray and Leave Patio and Driveway Cleaner – 2.5L

## Features

- STONE PROTECTION - Patio Black Spot Preventer is suitable for all stone types, effectively preventing black spot infestations on terraces and pathways, ensuring long-lasting protection for your spaces.
- GENEROUS COVERAGE - Treat up to 50 square meters with a single application of this powerful preventer, providing ample coverage for larger outdoor areas and preventing the recurrence of black spots.
- POST REMOVAL DEFENCE - Apply Patio Black Spot Preventer within 12 months of using Patio Black Spot Remover to ensure continued prevention of black spot infestation. Effectively targeting black lichen spores.
- EFFICIENT ALGAE REMOVAL - Our Black Spot Preventer removes green and red algae on garden paths, patios, and decorative stonework within 3-5 days of application, ensuring a clean and pristine appearance.
- TRUSTED BRAND - Patio Black Spot Removal Company is trusted by leading garden centres in the UK. Our biodegradable, acid-free products restore the vibrant colour of garden stonework, ensuring a spotless and lasting finish.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Patio Black Spot |
| Part number | PRE25 |
| Item Weight | 2.5 kg |
| Product Dimensions | 17.7 x 10.1 x 16 cm; 2.5 kg |
| Manufacturer reference | PRE25 |
| Item Package Quantity | 1 |
| Coverage | 50 square meters |
| Batteries included? | No |
| Batteries Required? | No |

## Product Details

- **Brand:** Patio Black Spot
- **Liquid volume:** 2.5 Litres
- **Item form:** Liquid
- **Active ingredients:** green algae,red algae
- **Coverage:** 50 square meters

## Images

![– Preventer – All Stone Types – Prevents Staining and Discolouration – Stops Slippery Surfaces – Removes Green and Red Staining – Spray and Leave Patio and Driveway Cleaner – 2.5L - Image 1](https://m.media-amazon.com/images/I/71gg1ET3w2L.jpg)

## Questions & Answers

**Q: Can Patio Black Spot Preventer be used on any stone type?**
A: Yes, it's suitable for all stone types, effectively preventing black spot and algae infestations on terraces and pathways.

**Q: How much area does one container of Preventer cover?**
A: A 2.5 litre container treats up to 50 square metres, ideal for large terraces or pathways.

**Q: What is the correct dilution for applying this product?**
A: For every 20 square metres, mix 1 litre of Preventer with 3 litres of water in a pneumatic sprayer, making 4 litres of solution.

**Q: How should I apply the Preventer for best results?**
A: Apply the mixed solution to no more than 20 square metres. Saturate the area thoroughly and allow it to dry without washing off.

**Q: What should I do if algae appears after treatment?**
A: If green algae forms, especially in shaded areas, reapply the Preventer to those specific spots as needed to maintain safety and cleanliness.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Brilliant
*by M***B on 4 August 2024*

This product worked perfectly, does exactly what it says on the label. My slabs looked really bad but now look like new. Really pleased how good they look. I needed to go over them a couple of times but definitely worth it. I have also brought the preserver and will use before winter

### ⭐⭐⭐⭐⭐ Keep your Patio looking new
*by N***S on 14 September 2024*

The product must be reapplied each year, so is expensive but worth it to keep the patio looking new

### ⭐⭐⭐ Too expensive
*by L***U on 27 May 2024*

OK product. Other alternatives in the market that is much cheaper.

## Frequently Bought Together

- Patio Black Spot Preventer - For all Stone Types - Controls and Prevents Reinfestation after Removal - Suitable for Terraces and Pathways - Removes Red and Green Stains From Algae - 2.5 L
- Patio Black Spot Remover - for All Stone Type - Restore Natural Colour - Removes Staining Caused by Black Lichen, Green Algae and White Fungi - Biodegradable and Acid-Free - 4 L

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**Shop now:** [https://www.desertcart.com.br/products/109966991-preventer-all-stone-types-prevents-staining-and-discolouration-stops-slippery](https://www.desertcart.com.br/products/109966991-preventer-all-stone-types-prevents-staining-and-discolouration-stops-slippery)

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-03-12*