Everbuild - 404 Fungicidal Wash

Brand: Everbuild
SKU: EVB-FUN5
£7.08 Incl. VAT
£7.08 Incl. VAT (regular price)
Please note: This product has a slightly longer lead time. Our team wiil notify you with an estimated delivery date.

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    Everbuild 404 Fungicidal Wash

    The Everbuild 404 Fungicidal Wash is great when used prior to applying render or EWI systems. It effectively kills mould and other biological growth on internal and external walls, floors and ceilings. This product also works incredibly well to remove algae, lichen, green slime and fungal growth from patios and drives. Once the Everbuild 404 fungicidal wash has been applied, it leaves a high-strength residual surface that inhibits future growth. We highly recommend this product for cleaning the substrate prior to installation of any of our EWI systems. It creates a clean, anti-bacterial surface prior to application of our other EWI products, and protects your walls from biological growth. Active Ingredients - Alkyl (C12-16) Dimethylbenzyl ammonium Chloride (0.99%w/w) 2-Phenylphenol. (0.25% w/w).

    Product Specifications

    Packaging - 5ltr plastic containers Appearance / Colour - Clear solution Shelf Life  - 24 months from date of manufacture when stored according to manufacturers instructions. Storage Conditions - Store at moderate temperatures in original containers. PROTECT FROM FROST. Density - 1.0 g/cm³ at 20°C

    Frequently Asked Questions

    Everbuild 404 Fungicidal Wash is a powerful surface cleaner designed to remove mould, algae, lichen and other biological growth from internal and external walls, floors and ceilings. It’s ideal for preparing surfaces before applying EWI systems or render products.

    Using Everbuild 404 ensures the substrate is completely clean and free from organic growth. This creates an anti-bacterial surface that helps render and EWI systems bond effectively and prevents future mould or algae issues.

    It can be used on a wide range of surfaces, including:

    • Internal and external walls

    • Floors and ceilings

    • Patios, drives and paving areas

     

    Once applied, Everbuild 404 kills existing mould, algae and lichen, leaving behind a residual layer that prevents future biological growth.

    Apply Everbuild 404 Fungicidal Wash directly to the affected area using a brush or spray. Allow it to soak into the surface, then scrub if needed. Leave the area to dry completely before applying any render or EWI products.

    Yes, it’s suitable for both indoor and outdoor use. It’s particularly effective for cleaning patios, render substrates and external walls before applying EWI systems.

    Reviews & Ratings

    Overall rating

    4.5
    ★ ★ ★ ★ ★
    6 reviews
    5 stars
    3
    4 stars
    3
    3 stars
    0
    2 stars
    0
    1 stars
    0

    Have something to say?

    Rate Everbuild - 404 Fungicidal Wash

    John

    ★ ★ ★ ★ ★ 4
    10.10.2025
    Good celan. Rinse snag.

    ian

    ★ ★ ★ ★ ★ 5
    09.10.2025
    Proper powerful wash. Zapped that stubborn green slime clean off for the EWI job, top quality.

    John

    ★ ★ ★ ★ ★ 5
    21.10.2024
    Killed the mould dead easy and stripped all the patio green gunk off. It's the essential first step for our EWI substrate. Sorted.

    Colin

    ★ ★ ★ ★ ★ 5
    06.11.2023
    Killed the mould dead. Perfect anti-bacterial prep for the EWI render. Proper job, spot on.

    Steve

    ★ ★ ★ ★ ★ 4
    08.10.2023
    Brill prep wash for masonry before render. Needs a second coat on deep black mould though. Decent value.

    David

    ★ ★ ★ ★ ★ 4
    22.06.2023
    Decent fungicidal wash. It did the job, killed the green slime quick and got the substrate properly prepped as per EWI guidelines for the anti-bac surface. Good stuff. However, it's a bit pricey for the 5ltr volume and the fumes are far too intense, definitely needed the full extra gear for handling. Didn't shift the dark mould spots easy, needed a proper scrub. The main snag that knocked off the star was the logistics: delivery was way slower than quoted, holding up our schedule.

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