PHS Airtight Liquid Membrane - Brush Apply - - - 5.5kg - Code AR9066C

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Thu 28th May 2026

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Product ID: AR9066C

Barcode: 5391536370824

Manufacturer: Passive House Systems

Price: 89.35 ex VAT) £107.22 (inc VAT)

107.22 2026-06-25
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PHS Airtight Liquid Membrane - Brush Apply - - - 5.5kg - Code AR9066C

Length:

Width:

Weight: 5.5kg

PHS Airtight Liquid Membrane is a VOC free, water based, flexible, fibre reinforced polymer. It is brush applied to create an uninterrupted airtight and vapour tight seal around penetrations, chases, floor to wall junctions, wall to ceiling junctions, and roof connections. In summary, this provides a unique and sustainable solution for airtight construction junctions in both new builds and retrofits.

PHS Paint-on Airtight Liquid Membrane creates a seamless and continuous airtight and vapour tight seal over cracks and gaps. Because the seal perfectly follows the contours of the substrate, additionally, in combination with the high flexibility and superior adhesion, the connections remain airtight over a long period of time. It is a fast, flexible and durable solution for all airtight connections.

Applications:
  • Floor to wall junctions,
  • Ceiling to wall junctions,
  • Window/door jambs,
  • Steel decks,
  • Behind sockets boxes and wall chases,
  • Renovation, new & old material interfaces,
  • Where services penetrate surfaces – pipes, cable, ducting, etc.
Features & Benefits:
  • Versatile for use on a wide variety of building materials like concrete, stone, wood, metal, aluminium, insulation, EPDM, etc.*
  • Suitable for new buildings and renovation,
  • Seamless and secure even with difficult connections,
  • Quick and easy application,
  • Can be applied to slightly damp surfaces,
  • Can be plastered, rendered or painted over,
  • Optimal product for materials of different coefficients of expansion,
  • Extensively tested for adhesion and elasticity.

 


 

Attributes

  • Ready-to-use airight liquid membrane.
  • Fibre reinforced
  • Water based, VOC free, polymer paste
  • Drying Time: 30-120mins
  • Approx coverage: +-1kg/m²
  • Storage Temperature: +5°C to +450°C
  • Sd Value: 10m
  • Water Penetration Resistance: Class W1
  • Adhesion to Concrete: 1.9N/mm²

Brand: Passive House Systems

Identifier: AR9066C


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Comes with a full manufacturer warranty (not including consumable products).

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