Verified by manufacturer 2 months ago
BBA Agrément Certificate
Certificate type
High technology, fibre reinforced polymer emulsion applied with a paintbrush. Dries to form a permanent flexible airtight vapour control membrane (AVCM).
Airtight White Liquid Brush vapour control membrane is a much thicker airtight vapour control paint. It is the paintbrush applied version of 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. The wall/ ceiling connections also need to be made airtight, especially when the connections are made of two different types of construction materials such as red brick/ concrete or steel/ concrete.
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. Both products can be used for these wall/ceiling connections: Airtight White, vapour control membrane can be applied with an airless paint spray device. Or Airtight White Brush vapour control paint can be applied by brush.
High technology, fibre-reinforced polymer emulsion applied with a paintbrush. Dries to form a permanent vapour control membrane.
Service penetrations can be the downfall of any air tightness or flexible membrane testing. Airtight White and Airtight White Brush vapour control paint are applied around objects that penetrate any surface to the external envelope, sealing where most tapes and membranes fail.
Before you apply Airtight White or Airtight White Brush, first apply polyurethane foam around any penetrations. After hardening, remove the excess foam and apply a generous amount of Airtight White Brush with a flat paintbrush. In all cases, apply a sufficient, well-covering layer for reliable airtightness and a guaranteed airtight membrane.
Airtight White vapour control membrane can be applied (and is tested) on different construction materials such as concrete, brick, wood, PVC, aluminium and polyurethane foam. With a coat of Airtight White, the whole window/door reveal can be made airtight.
A polymer-based paste which is applied with a paintbrush and dries to an airtight vapour control membrane (AVCM) with excellent adhesion on different substrates.
Features and benefits:
Technical characteristics:
- Adhesion (to ISO 4624):
Color | White |
Finish | Other |
Material | Polymer |
Shape | Formless |
Length | Bespoke |
Width | Bespoke |
Height | Bespoke |
Warranty description | Lifetime |
Uniclass | |
CAWS | J41/395 Air and vapour control layer J42/395 Air and vapour control layer J21/395 Air and vapour control layer J31/330 Air and vapour control layer H30/261 Air and vapour control membrane H31/261 Air and vapour control membrane H11/785 Air and vapour control layer P10/60 Air and vapour control layer P10/310 Air and vapour control layer H30/30 Air and vapour control membrane H92/780 Air and vapour control layer |
Product range |
Material | Manufacturer guidanceManufacturer's standard. |
Purpose | Airtight vapour control membrane. |
Standard | To BS EN ISO 12572, BS EN 12114, BS EN ISO 11925-2 and BS EN ISO 4624. |
Third-party certification | To EOTA TR008. |
Performance characteristics | |
Tensile strength (minimum) | 42 N/50 mm². |
Elongation to break | 264% and 262.7%.Guidance for specification option: Average and average after ageing respectively. |
Resistant to underground gases | Manufacturer guidanceConsult manufacturer. |
Water vapour resistance (minimum) | 114.5 MN·s/g. |
Fire performance | To EN ISO 11925-2, <150 mm.Guidance for specification option: Flame propagationManufacturer guidanceFire reaction (to EN ISO 11925-2): No. |
UV stabilization | Manufacturer guidanceConsult manufacturer. |
Environmental performance requirements | |
Environmental rating | Passivhaus certified score of 0.03 ACH. |
Volatile organic compounds (VOC) emissions level (maximum) | Zero. |
Recycled content | Manufacturer guidanceGrinded as solid film in plastics. |
Form | Liquid. |
Root inhibitor | Manufacturer guidanceConsult manufacturer. |
Physical properties | |
Colour | Purple.White. |
Weight (minimum) | 5 kg.Guidance for specification option: Per tub/ unit. |
Dimensions | |
Thickness (minimum) | 0.5-1 kg/m².Guidance for specification option: Total advised indicative consumption. |
Width (minimum) | 75 mm.Guidance for specification option: 133 linear metres. |
Roll length (minimum) | 75 mm.Guidance for specification option: 133 linear metres. |
Density | 1.2 kg/L. |
Contains Red List materials | No |
Country of material origin | Europe |
Country of product manufacture | Europe |
Material | Polymer |
Embodied carbonA1-A3 (production stage) as defined in BS EN 15804 | 0.09 kg CO₂ eq/m² Self declared |
Recyclability | Not recyclable due to its adhesion to other products |
Recycled contentAs defined in clause 7.8 of BS EN ISO 14021 | 0 % Guidance for specification option: Grinded as solid film in plastics. |