K Rend Render Clean 5L is a water-based, antibacterial fungicidal wash designed to remove algae, mould, lichen and mildew from external surfaces. It works by killing organic growth at the root, helping to restore the appearance of walls and hard surfaces whilst reducing the risk of surface damage. Suitable for use on brickwork, concrete, paving, tiles, masonry, tarmac, painted plaster and render, it requires no scrubbing and continues to work after application as it naturally weathers off, helping to slow regrowth.

Key Features

• Suitable for a wide range of external surfaces, including render, brick, paving and tarmac
• Reduces algae regrowth, keeping treated areas cleaner for longer between applications
• Kills algae, mould, lichen and mildew to improve surface appearance and longevity
• Has a water-based, antibacterial, fungicidal formula for effective outdoor cleaning
• No scrubbing required, saving time and effort on large external areas
• Safe for surrounding grass and vegetation when used as directed
• Easy to apply using a brush, spray, or watering can
• Can be used as a yearly maintenance treatment
• Previously known as K Rend Algae Clean

Technical Information

• Dilution Ratio: 1 part Render Clean to 2 parts water (1:1 for heavy contamination)
• Appearance: Clear, colourless to straw-coloured liquid
• Application Frequency: Every 6-12 months
• Coverage: 2-5m² per L (when diluted)
• Cure Time: 3 days
• Volume: 5L

Application Instructions

1. Always read and follow the health and safety instructions provided on the packaging
2. Dilute the solution as required, depending on the level of contamination
3. Apply liberally to the affected area using a brush, spray or watering can
4. Allow the surface to dry fully; do not rinse off after application
5. As the treatment weathers over several days, organic growth will break down and can be brushed off if required
6. For heavily soiled surfaces, a second application may be necessary