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Passive Purple External Brush – Vapour Open Waterproof Facade Membrane

Passive Purple External Brush is a ready-to-use, facade membrane coating based on specific pure acrylate polymer dispersions. After application with an airless spray device or paint roll, the coating dries to a durable, flexible, watertight and damp-open membrane.

Passive Purple External Brush is a UV-resistant and watertight spray or roll-applied membrane used for facades. It is a  Fire Class B, S1 product that can adhere to any form of construction.

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£59.99 + VAT

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  • Key Details

    Why Choose Passive Purple External Brush – Facade Membrane?

    • Vapour open and watertight solution
    • Easy application, all you need is a paintbrush!
    • Fire-rated Class B
    • VOC-free and no nasty chemicals included
    • Fully flexible solution, so no bending or cracking
    • A highly cost-effective solution
  • Uses

    For small projects, such as private houses, Passive Purple Brush, facade membrane can be used with a flat paintbrush. In this case, an airless spray device is not needed. If you don’t have an airless sprayer but would still wish to install Passive Purple yourself, don’t worry, we have a roller version for you. It may take a bit longer, but it gets the job done.

    • Wall/Ceiling Connections

    Wall/ceiling connections need to be made airtight, especially when the connections are made of two different types of construction materials such as red brick/concrete or steel/concrete. Different construction materials react differently to changes in humidity and temperature, moving at different rates, which can lead to small cracks in plaster or another type of finishing. That movement can create air leaks that cause your building’s energy performance to suffer and potentially open the gateway for damp and mould to appear.

    • Envelope Penetrations

    Service penetrations can be the downfall of any air tightness testing.  Passive Purple Brush facade membrane is applied around objects that penetrate any surface to the external envelope, sealing where most tapes and membranes fail. Before you apply Passive Purple Brush, first apply polyurethane foam around any penetrations. After hardening, remove the excess foam and apply a generous amount of Passive Purple with a flat paintbrush. In all cases, apply a sufficient, well-covering layer to guarantee airtightness.

    • Window/Door Reveals

    Passive Purple Brush can be applied (and is tested) on different construction materials such as concrete, brick, wood, PVC, aluminium and polyurethane foam. With a coat of Passive Purple External Brush, the whole window/door reveal can be made airtight.

  • Data Sheets & Certificates
  • Architects Specification

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  • Delivery

    All delivery charges are included in the price of the products and are dependent on the products selected for purchase. This charge is based on delivery to mainland UK, excluding the Scottish Highlands & the Islands where additional shipping charges will apply. For more information read our delivery policy in full.

    Intelligent Membranes do not offer a next day delivery service.

    Intelligent Membranes aim for deliveries to be with the customer within 1-2 working days.

    Orders placed before 12pm will be dispatched the same day, any orders placed after 12pm will be dispatched the following working day

  • Returns

    We, at Intelligent Membranes, would like you to be 100% satisfied with your purchase and our service. In the unfortunate event of any item being unsuitable or wrong, please read our returns policy in full.

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