PASSIVE PURPLE AIRTIGHT VAPOUR CONTROL MEMBRANE WHITE BRUSH 5kg IM/00AWB10Airtight White brush vapour control membrane is a much thicker airtight vapour control paint. It is the paintbrush applied version of Passive Purple Airtight White. For small projects, such as private houses, Airtight White brush can be used with a flat paintbrush. In this case, an airless spray device is not needed. A spray applied version is available however, if you don’t have an airless sprayer but would still wish to install Airtight White yourself, don’t worry, we have a roller version for you. It may take a bit longer, but it gets the job done. Different construction materials react differently to changes in humidity and temperature, moving at different rates, which can lead to small cracks in plaster or another type of finishing. That movement can create air leaks that cause your building’s energy performance to suffer and potentially open the gateway for damp and mould to appear. This is where Airtight White comes into play and can be used for wall/ceiling connections.

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