---
product_id: 47881344
title: "Patio Magic! 16491 Concentrate: Ideal for Patios, Paths and Driveways (Kills Algae and Lichens), 2.5 Litres"
brand: "patio magic!"
price: "€ 69.84"
currency: EUR
in_stock: true
reviews_count: 8
category: "Patio Magic!"
url: https://www.desertcart.fr/products/47881344-patio-magic-16491-concentrate-ideal-for-patios-paths-and-driveways
store_origin: FR
region: France
---

# Works in 2-4 days Biodegradable & eco-conscious Long-lasting protection for months Patio Magic! 16491 Concentrate: Ideal for Patios, Paths and Driveways (Kills Algae and Lichens), 2.5 Litres

**Brand:** patio magic!
**Price:** € 69.84
**Availability:** ✅ In Stock

## Summary

> ✨ Refresh your outdoor space—fast, flawless, and eco-smart! 🌿

## Quick Answers

- **What is this?** Patio Magic! 16491 Concentrate: Ideal for Patios, Paths and Driveways (Kills Algae and Lichens), 2.5 Litres by patio magic!
- **How much does it cost?** € 69.84 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/47881344-patio-magic-16491-concentrate-ideal-for-patios-paths-and-driveways)

## Best For

- patio magic! enthusiasts

## Why This Product

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

## Key Features

- • **Trusted by Thousands:** Over 13,600 users rate it 4.2 stars for reliable, visible results.
- • **Effortless Application:** Simply pour or spray—no elbow grease required, saving you time and hassle.
- • **Eco-Friendly Powerhouse:** Biodegradable formula that’s tough on grime but gentle on the planet.
- • **Versatile Surface Savior:** Perfect for patios, driveways, fencing, and even pre-paint fungicidal wash.
- • **Rapid Algae & Moss Eradication:** Transforms your patio in as little as 48 hours—no scrubbing needed.

## Overview

Patio Magic! 16491 is a 2.5L biodegradable liquid concentrate designed to kill algae, moss, and green mould on hard surfaces within 2-4 days. Suitable for patios, paths, driveways, and fencing, it offers long-lasting protection without scrubbing. Trusted by thousands with a 4.2-star rating, this eco-conscious formula revitalizes outdoor spaces quickly and effectively.

## Description

Biodegradable liquid concentrate effectively removes green mould, algae and moss from hard surfaces in 2-4 days. Easy to apply, long-lasting protection without scrubbing.

Review: Fantastic product - Wish I'd taken before and after pictures! This did a great job. My patio area was really discoloured after the winter period with slippery green areas. Followed the instructions and poured this all over. I didn't use a hard bristle brush to work it in even though it says this is not nessasary. If it doesn't look like it's doing much after a day or so don't worry as it keeps working as the days go on. Our patio came up looking like new!
Review: Algae and moss gone. - It does what it claims! Mild algae on block paving, gone overnight at 1:9 dilution with water. Patio needed stronger solution at 1:4 to kill thicker build up and moss and took a couple of days longer to do its job. Also cleaned algae from wooden fencing. Lost a star as it's a small container and at the stronger dilution doesn't go very far. I used a sprayer but with a watering can I would have struggled to cover the area needed.

## Features

- Causes serious eye damage.
- Causes skin irritation.
- Toxic to aquatic life with long lasting effects.
- Use biocides safely. Always read the label and product information before use.
- Very toxic to aquatic life.
- Patio Magic! Liquid Concentrate Mould, Algae and Moss Killer can be used on hard surfaces indoor and outdoor, and can be used as a pre-paint fungicidal wash
- Patio Magic kills green mould in 2-4 days, and gently cleans the exposed surfaces in the weeks to come
- This biodegradable cleaner is suitable to treat your patios, fencing, driveways and all round hard surfaces
- Works in a few days, lasts months
- Size: 2.5 liters

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001VEJCLM |
| Capacity | 2.5 litres |
| Customer Reviews | 4.2 4.2 out of 5 stars (13,635) |
| Date First Available | 1 Mar. 2009 |
| Item display height | 20.7 centimetres |
| Item display length | 8.6 centimetres |
| Item display weight | 2.6 Kilograms |
| Item display width | 14 centimetres |
| Item model number | 16491 |
| Manufacturer | Patio-Magic |
| Part number | 16491 |
| Power source type | Air Powered |
| Product Dimensions | 8.6 x 14 x 20.7 cm; 2.6 kg |

## Product Details

- **Active ingredients:** Ferrous Sulphate
- **Brand:** Patio Magic!
- **Item form:** Liquid
- **Item weight:** 2.6 Kilograms
- **Liquid volume:** 2.5 Litres

## Images

![Patio Magic! 16491 Concentrate: Ideal for Patios, Paths and Driveways (Kills Algae and Lichens), 2.5 Litres - Image 1](https://m.media-amazon.com/images/I/81W+DwqXtHL.jpg)

## Questions & Answers

**Q: Where can I use Patio Magic! hard surface cleaner?**
A: Can be used on a wide range of outdoor surfaces such as patios, tarma/asphalt driveways, painted/glazed pots, garden ornaments, brickwork, masonry, York stone, concrete, greenhouses, conservatories, PVC, caravans and artificial play/sports surfaces.

**Q: Do I need to jet wash the surface before I apply Patio Magic!?**
A: No. Pressure-washing often roughens surfaces, thereby encouraging rapid algal re-growth. Patio Magic! is a dynamic algaecidal detergent which works without the need for manual scrubbing or pressure-washing - and it takes just minutes to apply.

**Q: When will I see results?**
A: The primary function of Patio Magic! products is to kill green mould and algae and lichens you will normally see the results of this within 2-4 days. Some lichens can be very hardy and results may take longer.

**Q: How long will Patio Magic! help prevent re-growth for?**
A: Protection can last for about 6-9 months after the first treatment, subsequent treatments can help extend the length of protection. Areas permanently in the shade, or prone to collecting water will have a reduced period of prevention.

**Q: When can children and pets return to treated areas?**
A: Children and pets can return to the treated areas once they have fully dried.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Fantastic product
*by L***E on 24 November 2025*

Wish I'd taken before and after pictures! This did a great job. My patio area was really discoloured after the winter period with slippery green areas. Followed the instructions and poured this all over. I didn't use a hard bristle brush to work it in even though it says this is not nessasary. If it doesn't look like it's doing much after a day or so don't worry as it keeps working as the days go on. Our patio came up looking like new!

### ⭐⭐⭐⭐ Algae and moss gone.
*by D***L on 10 March 2025*

It does what it claims! Mild algae on block paving, gone overnight at 1:9 dilution with water. Patio needed stronger solution at 1:4 to kill thicker build up and moss and took a couple of days longer to do its job. Also cleaned algae from wooden fencing. Lost a star as it's a small container and at the stronger dilution doesn't go very far. I used a sprayer but with a watering can I would have struggled to cover the area needed.

### ⭐⭐⭐⭐⭐ Works like magic!
*by M***Y on 26 November 2025*

Patio Magic! 16491 Concentrate is fantastic for keeping patios, paths, and driveways clean. Very effective and easy to use, it made a noticeable difference in no time. I’m so happy with the results that I will definitely be buying again and would recommend it to anyone looking for a reliable outdoor cleaner!

## Frequently Bought Together

- Patio Magic! 16491 Concentrate: Ideal for Patios, Paths and Driveways (Kills Algae and Lichens), 2.5 Litres
- Spear & Jackson 5LPAPS 5 Litre Pump Action Pressure Sprayer
- Mitclear Heavy Duty Wire Broom with Telescopic Handle(57IN), Stiff Metal Bristle Brush for Removing Weed Moss Algae, Outdoor Floor Scrub Brush for Patio, Deck, Garden

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*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-01-22*