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Finishing paint PASSIVE PURPLE EXTERNALliquidfor woodfor the building industry
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Characteristics
- Type
- finishing
- Consistency
- liquid
- Support
- for wood
- Applications
- for the building industry, for wall
- Color
- violet
- Other characteristics
- UV, water-resistant
- Capacity
5 l
(1.321 gal)
Description
Overview
Tested performance & certifications
Key features for specifiers
Typical applications
Application methods
Preparation & priming
Technical specifications
Documentation & installer support
- Passive Purple Brush is a brush-applied, fibre-reinforced liquid vapour-control paint that creates a continuous airtight, smoke-tight and fire-resistant membrane for external façades.
- Designed for sealing joints, cracks and complex junctions on the warm side of the building envelope; suitable for new build and retrofit projects.
Tested performance & certifications
- Passivhaus component (Class A airtightness results).
- ASTM E84 Class A; Euroclass B-s1,d0 on appropriate substrates (EN 13501-1).
- Air barrier performance: 0.02 L/s·m² at 75 Pa (ASTM E2178); airtightness 0.02 m³/h·m² @50 Pa (EN 12114).
- Vapour control: Sd ≈ 0.6–40 m depending on coat thickness (EN ISO 12572).
- Watertight to EN 14891; UV-stable, low VOC (French A+ / Finnish M1), mould resistant.
Key features for specifiers
- Brush-applied, fibre-reinforced formula for efficient bridging of 2–5 mm gaps and irregular surfaces.
- Creates a continuous, flexible airtight layer that accommodates building movement and supports airtightness testing targets.
- Water-based, low-VOC formulation suitable for interior-facing warm side and external façades where brush application is required.
- Compatible with common substrates: masonry, concrete, brick, plasterboard, OSB, engineered timber and steel.
Typical applications
- External façades, junctions, window/door reveals, parapets and roof-to-wall details.
- Suitable for new construction, retrofit airtightness upgrades and Passivhaus-oriented projects.
Application methods
- Brush application (Passive Purple Brush): fibre-reinforced variant ideal for detail work, junctions and small areas.
- Do not dilute. Apply minimum recommended coat thicknesss to achieve specified vapour/air barrier performance.
- Allow full cure before overcoating, rendering or plastering as per technical guidance.
Preparation & priming
- Remove efflorescence, dust, loose material and standing water prior to application.
- Prime porous or lime-rich substrates with Lime Prime; use Primer I.M. for dense or consolidated older substrates.
- After curing, prime with Supergrip to ensure good adhesion of plaster, render or adhesives.
Technical specifications
- Pack size (presented): 5 kg brush version.
- Colour: purple.
- Fibre-reinforced option for brush application; water-based, low VOC.
- Elongation: ~219–350% (EN 12311-1). Adhesion (EN ISO 4624): steel 2.7 N/mm², CLT 1.83 N/mm², gypsum 1.6 N/mm², brick 1.5 N/mm².
- Certifications: Passivhaus component, ICC-ES / ASTM results, EN test suites and regional approvals (EPD available).
Documentation & installer support
- Technical Data Sheet (TDS), Installation Guide and Safety Data Sheet (SDS) available for the brush version.
- Installation QA and sign-off documentation supplied for compliance and handover.
Catalogs
No catalogs are available for this product.
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PASSIVE PURPLE EXTERNAL
*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.