Dulux Trade Weathershield Fungicidal Wash 5L removes lichen, mould, and algae from wooden and masonry surfaces. It is ideal for use on walls and woodwork, providing a clean, contaminant-free base before surface treatment or painting. This ensures better adhesion and enhances the durability of the final paint finish.

Protective clothing should be worn when using Dulux fungicidal wash. Only apply this product with a brush in a well-ventilated area.

Key Features

• Ensures surfaces are free from organic contaminants, improving the longevity and adhesion of the final paint finish
• Suitable for masonry and wooden surfaces
• Kills lichen, mould and algae
• For brush application only
• Comes ready to use
• Easy to apply
• Water-based

Technical Information

• Active Ingredient: Benzalkonium Chloride
• Maximum Coverage: 25m²/L
• Nominal Volume Solids: 3%
• Working Time: 24 Hours
• Touch Dry: 2-4 Hours
• Colour: Clear
• Quantity: 5L

Application Instructions

1. Wear appropriate PPE and work in a well-ventilated area
2. Remove as much algae or lichen from the surface by scraping and brushing it
3. Shake the can of fungicidal wash thoroughly before opening it
4. Use a brush to apply the mould wash to the surface
5. Wait 24 hours for the solution to work
6. Scrub and rinse the surface with clean water to remove dead growth
7. Repeat the process if needed

Storage

• Store this product away from frost and direct heat.

Safety Note

• Please note: This product can cause skin and eye damage. See the Product Data Sheet PDF attached for more information.