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Airtight Paint Membrane

Our five-star liquid membranes prevent the passage of water and other liquids through a building’s fabrication, resolving any penetration issues that you have with windows, door reveals, walls or ceilings.
  • on sale

    Airtight Membrane Paint Home Pack

    • BBA, Passivhaus and EPD certified
    • Airtight
    £96.66 Was £104.99
    £115.99 Was £125.99
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  • on sale

    Airtight Paint Membrane Handy Pack

    • BBA, Passivhaus and EPD certified
    • Airtight
    £52.21 Was £59.99
    £62.65 Was £71.99
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  • on sale

    Internal Airtight Vapour Control Paint

    • BBA, Passivhaus and EPD certified
    • Airtight
    £105.45 Was £114.99
    £126.54 Was £137.99
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Passive Purple is the world’s most airtight liquid-applied vapour control membrane.

Passive Purple is a VOC-free water-based product. It’s completely free of any nasty chemicals or fumes. What’s more, as a water-based product, cleaning your paintbrushes and airless spray device is a smooth, no mess task.

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