Façade Waterproofing Membrane (10kg)

Usage: External
Applied By: Roller or Spray
Colour: Purple
Size: 10kg

View on BIM Object

Passive Purple External is a ready-to-use facade waterproof membrane. It is based on specific pure acrylate polymer dispersions that, after application with an airless spray device or paint roll, it dries to a durable, flexible, watertight, UV resistant and damp-open membrane.

Passive Purple External – Facade Waterproof Membrane is used as:

  • A weatherproof protective membrane on exposed facades
  • Airtightness and rainproof membrane before anchoring/installing insulation panels and facade finish.
  • Airtightness and rainproof membrane before façade finish is installed, such as façade panels.


Not just in purple. Browse our product spec for more colours. 



  • 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.

    Additional information


    Purple, Black, Cream

  • 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
  • Architects Specification

  • Reviews


    There are no reviews yet.

    Be the first to review “Façade Waterproofing Membrane (10kg)”

    Your email address will not be published. Required fields are marked *

  • 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.

Related Products