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Leak-proofing paint PASSIVE PURPLE X
protectiveindooroutdoor

Leak-proofing paint - PASSIVE PURPLE X - Intelligent Membranes - protective / indoor / outdoor
Leak-proofing paint - PASSIVE PURPLE X - Intelligent Membranes - protective / indoor / outdoor
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Characteristics

Function
protective, leak-proofing
Location
outdoor, indoor
Application
wall, for facade, for insulation panel
Support
for wood, for concrete, for bricks
Component
water-based
Finish
matte
Options
quick-set, VOC-free, fire-resistant
Number of coats
two coats
Ecological characteristics
VOC-free

Description

Product overview
  • Passive Purple X 10 kg is an airtight, vapour-control coating designed for fire-conscious façades and substrate protection. Applied by airless spray or roller; available in White, Purple, Black and Cream.

Excelling characteristics
  • Fire class B
  • Raintight while vapour-breathable
  • Airtight membrane
  • UV resistant
  • Anti-fungal treatment
  • Self-cleaning / reduced dirt pickup from UV netting
  • Crack-bridging capability
  • Carbonation blocking and realkalising properties for concrete
  • Protection against salts for concrete in road/transport environments
  • Can be used as protective anti-carbonation coating on concrete
  • Suitable for internal and external applications
  • Smoke tight
  • Allows substrate vapour diffusion while ensuring airtightness
  • Intelligent moisture management

Tested & Certified — fire-rated, watertight & breathable
  • Reaction to fire: Euroclass B-s1,d0 (EN 13501-1, on A1 substrates ≥653 kg/m³) and ASTM E84 Class A (Flame Spread 0 / Smoke 15)
  • Watertight: Watertight Class W1 (EN 13859-2) & water permeability Class W3 (EN 1062-3); near-zero water absorption (EN 16302)
  • Breathable / vapour-open — Sd ≈ 0.6 m (EN ISO 12572)
  • Crack-bridging: A3 (23°C) / A4 (-10°C) (EN 1062-7) & CO₂ / carbonation barrier Class C1 (EN 1062-6)
  • UV-stable (strength increases after 500 h UV); low-emission EMICODE EC2; anti-fungus (rating 0)
  • Kiwa BDA Agrément (BAW-21-214-P-A-UK); Passive House component (phB); US ICC-ES AC212 water-resistive barrier

Why choose Passive Purple X?
  • Efficient application — with an airless spray device a single operator can cover up to ~300 m² of façade protection; rapid two-coat process
  • VOC-free — water-based, no added volatile organic compounds
  • Application methods — airless spray (e.g. Graco) or roller
  • External protection — forms a watertight vapour-control membrane with UV resistance
  • Fire rated — Class B reaction to fire
  • Breathable — permits vapour release while maintaining airtightness
  • KIWA approved and listed certifications

Uses & directions of use
  • Substrates: insulation panels, concrete and masonry, fibre cement boards, engineered wood/OSB panels
  • Surface preparation: remove salt efflorescence, dust, loose parts and standing water
  • Fill holes and joints with fast-setting cement-based product or polyurethane foam as required
  • Apply at substrate temperature T < 5°C (observe substrate temperature considerations)
  • Application permitted on humid surfaces if standing water is removed
  • Do NOT add water or solvents
  • Do NOT apply in direct full sunlight
  • Do NOT apply during rain
  • Apply two coats (spray or roller); allow first coat to dry before applying second
  • Clean tools with water after use

Technical data (summary)
  • Usage: External or Internal
  • Applied by: Roller or Spray (airless)
  • Colours available: Purple, Black, Cream, White
  • Size / Packaging: 10 kg container
  • Certification summary: BS Fire Class B; ASTM (E84) Class A; KIWA BDA Agrément; Passive House component; US ICC-ES AC212
  • VOC: Water-based, VOC-free

Related guides & references
  • Airtight and Vapour Control for High-Rise Re-Cladding
  • The Airtightness Challenge: Why Blockwork Alone Is No Longer Enough
  • How to Retrofit Vapour Control Without the Mess

Characteristics / technical specifications
  • Model name: Passive Purple X
  • Fire rating: Euroclass B-s1,d0 (EN 13501-1) and ASTM E84 Class A
  • Watertight classification: Class W1 (EN 13859-2); water permeability Class W3 (EN 1062-3)
  • Breathability: Sd ≈ 0.6 m (EN ISO 12572)
  • Crack bridging: A3 (23°C) / A4 (-10°C) (EN 1062-7)
  • Carbonation / CO₂ barrier: Class C1 (EN 1062-6)
  • Anti-fungus: rating 0
  • EMICODE: EC2 (low emission)
  • Application methods: Airless spray or roller; two coats
  • Container size: 10 kg
*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.