Perfect for creating a watertight yet vapour open layer on timber, steel, and concrete surfaces, Passive Purple Airtight Vapour Control Membrane Brush is a waterproofing membrane that is simple and hassle-free to apply.
This brush-applied version features fibres that help cover larger gaps on your external façade before spraying or rolling the substrate with Passive Purple External. Ideal for gaps, corner junctions, joints and service penetrations, the coating dries to a durable, flexible, watertight and damp-open membrane.
Features & Benefits: Intelligent Hardware Passive Purple Airtight Vapour Control Membrane Brush – External 5kg
- Creates a watertight yet vapour open layer on timber, steel, and concrete surfaces
- Simple and hassle-free to apply
- Features fibres that help cover larger gaps on your external façade
- Ideal for gaps, corner junctions, joints and service penetrations
- Dries to a durable, flexible, watertight and damp-open membrane
- A coverage of approximately 133 linear metres at 75mm
Coverage
- Each 5kg tub has a coverage of approximately 133 linear metres at 75mm.
Please note:
- Before applying, it is important to first prepare the surface by removing dust and loose materials.
- Do not add water or solvents
- Do not apply in full sunlight or during rain.
- When applying Passive Purple External on insulation boards, use textile to reinforce the joints of the boards, in between 2 layers of Passive Purple External if joint movement is an issue.









Reviews
There are no reviews yet.