Fiber-reinforced, liquid-applied airtight membrane

Regular Price - $138 per

Sale Price - $75 per
Sale price applies to product in-stock at WickRight only

Why use Passive Purple Brush?

Passive Purple Brush is applied with a flat paint brush, it contains fibers that span and seal larger cracks (up to 5mm) and irregularities. Brush is the go-to airtight paint for details and repairs, that delivers the same Passive House Certified airtightness as our spray or roller-applied products. When Brush has cured, it's a permanent flexible, airtight layer that can be painted, plastered or rendered over.

• Passive House Certified airtight paint for guaranteed performance
• Precision solution for windows, doors, service penetrations, and junctions
• Ideal for retrofits and new builds – works on masonry, timber, plasterboard, OSB, and concrete
• Water-based, low VOC, safe indoors

Where is it used?

• Service penetrations(pipes, cables, ducts)
• Window and door frames
• Floor-to-wall and wall-to-ceiling junctions
• Cracks and gaps up to 5mm
• Touch-ups after air testing

Surface preparation

• Ensure surfaces are solid, dust-free, and closed.
• Large gaps (>5mm): Fill with cement-based filler or foam before application.
• Small to medium gaps (2–5mm): Passive Purple Brush can be applied directly.