Liquid Applied Airtightness Waterproofing & Building Envelope Membrane

Liquid-applied membranes for airtightness, waterproofing & protection

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Passive Purple® is a high-performance, liquid-applied airtight membrane designed for superior airtightness, waterproofing, and building protection. It creates a seamless barrier that stops air leakage, improves energy efficiency, and delivers certified, reliable performance for new builds, Passive House projects, and retrofits.

What we stand for
PASSIVHAUS PERFORMANCE
Whether it’s a cutting-edge new build or a sensitive retrofit, our systems achieve airtightness levels that meet and exceed
Passivhaus standards.


NET ZERO MADE PRACTICAL
Our vapour-open and vapour-closed airtight solutions cut carbon emissions by
improving building fabric performance, helping projects hit Net Zero targets
without compromise.


INNOVATION YOU CAN TRUST
From the world’s first fire-rated airtight paint to our pioneering spray- and brush applied vapour control systems, we deliver solutions that outperform outdated tapes and membranes.

REAL WORD RELIABILITY
Our products are VOC-free, cost-effective, and fast to apply, Working in all conditions and proven on some of the toughest projects worldwide.

• Internal Airtight Paint
• Weatherproof Airtight Paint
• Bathroom & Wet Room Paint
• Waterproof Paint
• Flame Retardant Paint
• Spray & Peelable Window Protection
• Bio-degradable Surface Protection
• Asbestos Encapsulation
• Primer Paint
• Weatherproofing Sealer
• Airtight Tape
• Heat Savings Calculator

PassivHaus
Passivhaus, also spelt Passive House, is an international standard for reducing the ecological footprint of a building by building them to be ultra-low in energy consumption.

This performance-based energy standard has been around for decades, although it’s been thrust into the zeitgeist more recently as a result of global commitments to the environment. It hosts a number of benefits such as improved air quality, thermal comfort, self-maintained moisture and humidity levels, increased space and increased daylight.

Although marketers of this concept often point to high-end projects to show off the efficiency of the Passivhaus strategy, the reality is that all builders can benefit from the Passivhaus standards. You don’t have to be “high-end” to be eco-conscious and build smarter buildings.

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