Hard Surface Algae Remover 1L – 500g/l Nonanoic Acid for Paths, Roofs, Drives & 3G Pitches (Treats 500m²+)

A professional biocide and hard surface cleaner containing 500g/l nonanoic acid (authorisation GB-2020-1248-0004). It removes algae and other green deposits from hard surfaces such as buildings and building materials, drives, roofs, paths, synthetic tennis courts, 3G and 4G sports pitches, concrete, tarmac and block paving.

Key Features

• Nonanoic acid destroys the cell membranes of algae, stopping photosynthesis and other physiological processes so the algae dries out and is removed
• Results can be visible after only a few hours
• Long lasting: some surfaces stay free from algae for a number of months
• Applied at low water volumes, unlike other de-greening chemicals that need large volumes of product and water
• One litre mixed with water treats well over 500m² in just one 15 litre knapsack
• Can be used twice per year at 1.8ml/m² (18L/ha)

Product Overview

How to Use

Where to use

On most building materials, pavements, paving blocks, steel, zinc, aluminium, tiles, bitumen, exterior wood, the outside of plastic or glass greenhouse walls, stones and non-grassed sports courses such as athletic tracks.

When to use

• Apply at any time of year, up to twice a year, when algae is present on porous or non-porous hard surfaces.
• Make sure no rain is forecast for at least two hours after application and that the temperature is above freezing.

Mixing and applying

1. Part fill the spray tank with clean water.
2. Add the correct amount of product: 1.8ml per square metre, with water to give a total spray volume of 30-50ml per square metre.
3. Fill the tank with the remaining water and agitate to mix thoroughly.
4. Use immediately, spraying the solution directly onto the affected surface with a hand-held, low-pressure sprayer (3 bar or below), and keep agitating until spraying is finished.
5. After treatment, rinse the spray equipment thoroughly with water.

Additional details

• Do not apply to synthetic resin, copper, lead or thatched roof surfaces.
• On zinc, aluminium, stainless steel and steel surfaces, if a thin white layer is still there 14 days after treatment, rinse with clean water.
• Do not use in rainy weather, if rain is forecast, or on frozen surfaces.
• Do not clean the surface after treatment, so the treatment can take effect.
• Avoid contact with non-target surfaces and plants, and avoid overspray and run-off to protect nearby plants and water sources.

Safety

• For professional use only; handle with caution.
• Always wear suitable personal protective equipment, including gloves, eye protection and face protection.
• Prevent contact with skin, eyes and clothing, and avoid breathing in dust or spray mist.
• For first aid in case of accidental contact or swallowing, see the product label.