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BAC 50 Biocide 5L | 50% Concentrated Moss, Algae & Mould Remover
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£25.00

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SKU: 114

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BAC 50 Biocide 5L | 50% Concentrated Moss & Algae Remover

​Eliminate moss, algae, mould, and lichen with our professional-grade BAC 50 Biocide. Formulated with a highly concentrated 50% Benzalkonium Chloride base, this industrial-strength formula deep-cleans and protects exterior hard surfaces.

​Unlike standard retail washes, BAC 50 bonds to the surface to provide a preventative barrier that keeps organic growth away for up to 1–2 years.

​Why Choose BAC 50?

  • Trade Strength: 50% active concentration built for professional contractors and heavy-duty commercial use.
  • Versatile Use: Perfect for roofs, patios, block paving, driveways, rendered walls, and fencing.
  • Weather-Driven Action: A slow-acting formula that kills organic cells on contact, allowing wind and rain to naturally wash away dead debris over time.
  • Eco-Friendly: Fully biodegradable when diluted, requiring fewer applications over time.

​Quick Dilution Guide

  • Roofs & Render: Dilute 1:20 with clean water.
  • Patios & Paving: Dilute 1:30 with clean water.
  • Heavy Industrial Cleaning: Dilute as required based on contamination.

​How to Apply (No Rinsing Required)

  1. Prep: Ensure the surface is completely dry. Avoid applying if rain is expected within 24 hours.
  2. Apply: Mix your required ratio and apply evenly using a low-pressure sprayer or a soft brush. (For best results, apply in cool, cloudy conditions).
  3. Leave It: Do not rinse it off. Allow the product to dry naturally. A dry period of at least 24 hours is required for optimal effectiveness.

​What to Expect (Working Time)

  • First Few Days: Initial discolouration as the biocide rapidly kills algae and moss on contact.
  • 6 to 12 Months: Complete, deep cleaning of heavily infested surfaces as natural weathering washes the dead contaminants away.
  • Next 1 to 2 Years: Active, long-term protection against regrowth.

​Important Precautions

  • Safety First: For professional use. Always wear appropriate PPE (gloves and goggles) during handling.
  • Pets & Children: Keep pets and children away from treated areas during application and until the surface is completely dry.
  • Storage: Store in a cool, dry place in the original tightly sealed container. Protect from frost and direct sunlight.
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FAQ

What is the active ingredient in BAC 50?

It uses a premium 50% Benzalkonium Chloride base, which acts as a powerful broad-spectrum disinfectant and antimicrobial agent against organic growth.

How long does the protection last after spraying?

A single proper application provides a preventative residual barrier that protects surfaces against moss, algae, and mould regrowth for up to 1-2 years

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