Colour Purple
retrofit airtight paint
SKU: IM/00PPE10-1-1-2

Passive Purple X (5kg) Brush Applied

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Usage: Internal & External
Applied By: Brush
Colour: Purple
Certification: ASTM A

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Introducing the Brush Version of Passive Purple X with advanced fibers, designed to easily span larger gaps and provide seamless airtight and breathable protection. This innovative solution is perfect for challenging applications where gaps, joints, or uneven surfaces need additional coverage, while still delivering the superior airtightness and breathability that Passive Purple X is known for.

Key Features and Benefits:

  • Fibers for Larger Gaps: The added fibers in the brush-applied version of Passive Purple X enhance its ability to bridge and seal larger gaps and cracks. This makes it ideal for areas that require extra flexibility, ensuring full coverage and airtight performance without compromising structural integrity.
  • Brush-On Application: Designed for ease of use, the brushable formula allows for precise application, especially in hard-to-reach areas or on irregular surfaces. This ensures even the most complex details are adequately sealed.
  • Airtight and Breathable: Like the original Passive Purple X, the brush version maintains a perfect balance of airtightness and breathability, allowing moisture to escape while preventing air infiltration. This is critical for walls that need controlled vapor movement without compromising energy efficiency.
  • Perfect for Retrofits and New Builds: Whether you’re sealing gaps in a new construction or dealing with existing structures, the brushable version is an adaptable solution for both new builds and retrofit projects.
  • Seamless Coverage: The fiber-reinforced formulation ensures that even large gaps are spanned seamlessly, providing continuous protection against air leakage and moisture ingress across any surface.

Why Choose the Brush Version of Passive Purple X?

  • Enhanced Gap Bridging: The added fibers allow it to handle larger gaps that typical membranes might struggle to cover, providing complete airtight coverage.
  • Precision and Flexibility: The brushable version is perfect for detailed areas or tricky sections of your building envelope, ensuring no gaps are left uncovered.
  • Airtight with Breathability: Just like its counterpart, this version balances airtightness with moisture control, making it an ideal solution for areas that need to breathe while staying energy-efficient.

With the Brush Version of Passive Purple X, you get all the benefits of airtightness, breathability, and enhanced gap-spanning capabilities, making it the ideal choice for any project that demands reliable performance across varying surfaces and conditions.

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Technical Drawings

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View Our Case Study Retrofit | Great Yarmouth

What Is This Product And Why Should You Use It?

Watch the video below to learn about why you should use Passive Purple External and why Vapour Control is important for your buildings/projects.

How To Install

A Closer Look At How To Install Passive Purple External Façade Membrane. Passive Purple External is a ready-to-use coating that is Class B FIRE rated for external facades. After application with an airless spray device or paint roll, Passive Purple External dries to a durable, flexible, watertight and damp-open membrane. Passive Purple External is for use on many types of facades as a protective breathable membrane. Its even airtight to 0.03 ach.

All You need to Know

Watch the video below for the FAQs about Passive Purple External

  • Key Details

    Why Choose Passive Purple External?

    • Cost Effective – Using an airless spray device, a single person can cover up to 300m2 of facade paint protection! That’s a super-fast application
    • VOC Free – Passive Purple External is water-based and VOC-free. You won’t find any nasties in here in our airtight paints
    • Easy Application – Passive Purple External can be easily applied with either a spray machine, like a Greco, or a roller if you don’t have a machine handy.
    • External Use – Passive Purple External is applied to the external facade to make a super tough watertight vapour control membrane for weatherproofing and UV resistance
    • Fire Rated – Passive Purple External is Class B fire rated, giving you peace of mind
    • Breathable – Passive Purple External lets in vapour where it’s needed while also ensuring your facade is airtight
  • Description

    Excelling characteristics of passive purple external: 

    • Fireclass B
    • Raintight but vapour breathable
    • Airtight
    • UV resistant
    • Anti fungus
    • Selfcleaning / reduced dirt pickup caused by UV netting
    • Crackbridging
    • Carbonatation block (for concrete); realkalising (concrete)
    • Protection against salts (for roads) (concrete structures).
    • Can also be used a as a protective coating on concrete as antiacrbonatation on concrete / cementcoating.
    • 1kg will cover 1m2

    Additional information

    Size

    5kg (Brush Only), 10kg (Roller or Spray)

    Colour

    Purple

    Placement

    Internal/External

    Application

    Brush

  • Uses

    Can Adhere to Any Form of Construction and includes:

    – Insulation panels
    – Concrete and brick walls
    – Fibre cementboards
    – Engineered wooden panels / osb panels

    Directions of use:

    • Remove salt efflorescence, dust, loose parts and standing water from the surface
    • Apply on a closed surface; if necessary, fill holes and joints with a fast setting cement based product or polyurethane foam
    • Apply Passive Purple External at T < 5°C (also substrate temperature)
    • Application on humid surfaces is allowed, but remove standing water
    • Do NOT add water or solvents
    • Do NOT apply in full sunlight
    • Do NOT apply during rain
    • Apply Passive Purple External with an airless paint spray device, or paint roll, in two layers. Apply the second layer, after the first layer has dried
    • Clean tools with water after use
  • Data Sheets & Certificates
    Product
    SHR Air Permeability Test Results
    SHR Protective Coating Results
    Install Guide
    BBRI Water Vapour Test Results
    LABC Certificate
    Fact Sheet
    BBRI Hydrothermal Performance
    SD & MS Calculation
    Tensile Force & Elongation Report
    Rockwool Airtightness Test
    Kiwi Agreement
    Safety Data Sheet
    Technical Data Sheet (Brush Edition
  • 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 2 working days. During the festive period deliveries could take longer.

    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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