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PHS Airtight Liquid Membrane is a VOC-free solution designed for ensuring airtight and vapour-tight construction junctions in both new builds and retrofits. Available in 5Kg and 10Kg tubs, this water-based liquid membrane is a sustainable option that offers an uninterrupted seal around penetrations, cracks, gaps, and the contours of various substrates.
Perfect for Passive House Systems, this brush-applied liquid membrane provides durable airtightness and adhesion, creating a seamless barrier against air and vapour infiltration. The fibre-reinforced polymer formulation ensures exceptional durability and flexibility, making it ideal for all airtight connections, including roof connections, ventilation systems, and around EPDM.
Key Features:
- Airtight Membrane: Made with a unique and sustainable solution for airtight construction junctions in both new builds and retrofits.Ensures a seamless and continuous airtight and vapourtight seal.
- Brush Applied: The liquid membrane is brush applied for ease of use. The 10Kg container is ideal for spray painting
- Seamless Seal: Creates a seamless and continuous airtight and vapourtight seal over cracks and gaps. Fiber reinforced therefore suitable for crack bridging up to 2mm.
- Versatile: Suitable for use on a wide variety of building materials. It is ideal for both new builds and retrofits, enhancing energy efficiency. Furthermore, this liquid membrane can be painted, plastered or taped after drying.
- Drying Time: Indicative drying time of 24-48 hours, depending on local conditions such as air humidity and applied layer thickness.
- Energy Efficiency: Helps increase energy efficiency within the building, contributing to lower energy consumption. It stays elastic after curing and very sustainable
Uses:
PHS liquid airtight membrane provides a unique and sustainable solution for airtight construction junctions in both new builds and retrofits. It permanently seals connections:
- wall to floor,
- wall to ceiling,
- window and door jambs,
- pipe and ducting penetrations,
Applications:
- PHS Airtight Liquid Membrane is ready-to-use; mix with hand mixer before application. Do not dilute with water or solvents.
- Apply PHS Airtight Liquid Membrane in two layers with a brush, at a total consumption of (indicative) 0,8–1 kg/m2.
- Drying time may vary and depends on local conditions and condition of the substrate. Indicative: 24–48hr.
- PHS Airtight Liquid Membrane is a VOC free, water based, flexible, fibre reinforced polymer.
- Ideal for use in retrofits and new builds suitable for wall-floor, wall-ceiling, pipe penetrations etc
- Airtightness and vapour barrier
- Liquid membrane can be painted, plastered or taped after drying.
- Ready to use liquid for brush (5Kg) or Spray
| Product Type | Liquid Airtight Mambrane |
| Brand | Passive House System |
| Size | 5kg and 10 Kg tubs |
| Average Consumption | 0.8 – 1 kg/m2 (indicative, depending on substrate). |
| Density | 1.15kg/litre |
| Colour | Blue (Wet), black on drying |
| Application Temperature | +5*C to +45*C |
| Temperature Resistance | -40°C to +100°C |
| Sd value | >10 |
| Delivery Terms | |
|---|---|
| Order Value (Ex VAT) | Delivery Charge (Ex. VAT) |
| £325.00 | Free Delivery |
| Below £325 | £14.00 - £19.00 (Depending on postcodes) |
Returns, Cancellations and Refunds:
- You are free to cancel your order before we send you an order confirmation email and get a full refund
- Once the order is confirmed and an estimated delivery date is issued via email, Orders cannot be cancelled.
- Incorrectly ordered Goods can be returned within 14 days of delivery at our discretion. The customer is responsible for ensuring the goods are returned back to the address provided, in good condition where they will be inspected prior to processing any refunds.
- For incorrect, damaged or faulty products, please contact us immediately after you receive delivery and we will assist accordingly.
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