VARA FLUID BRUSH - Liquid Airtight Membrane - Vapour Control Layer
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DoP
Certificate type
A brush applied air and vapour control layer (AVCL). Smart membrane.
Application
VARA FLUID Brush is an air and vapour control layer designed for use internally and externally on the warm side of insulation on wall, ceiling, roof and floor applications. It is easily applied, vertically or horizontally, with a paintbrush and dries to an airtight flexible coating.
Suitable for:
- Application on various surfaces – masonry concrete, silicate, OSB, plywood etc.
- Wall, ceiling, roof and floor applications
- Externally vapour open and vapour closed structures
- Wall to floor connections
- Wall to ceiling connections
- Wall to timber connections
- General construction joints
- Residential and commercial buildings
Description
Vara Fluid Brush is a water-based vapour control coating providing continuous airtightness over cracks and gaps in both new build and retrofit projects.
Vara Fluid Brush is a water-based air & vapour control layer (AVCL) that can be brushed, providing a continuous airtightness over cracks and gaps in both new build and retrofit projects. Advanced Hygrovariable Technology allows incredible summer drying conditions, but can equally protect the construction in winter.
Features and benefits:
- Innovative liquid airtight membrane that changes vapour permeability according to the ambient relative humidity (RH). This contributes to maximum protection in the building envelope where moisture levels are critical, allowing vapour to escape and dry the structure.
- Ensures optimum moisture flow through building structures with a Sd range of 0.15m to 16m.
- Hygrovariable Technology - Extremely safe airtight system.
- phA Class Passive House Certified airtight system, featuring an air permeance value of 0.00 m³/(m²h)
- Flexible and durable.
- LOW VOC polymer-based liquid.
- Class W1 resistance to water penetration.
- Excellent adhesion on various surfaces .
- Fast application – speeds up construction.
- Ready-to-use product – vertical or horizontal application.
General information
Color | Beige |
Material | Polymer |
Shape | Formless |
Warranty description | Ten year |
Uniclass | |
CAWS | P10/60 Air and vapour control layer P10/310 Air and vapour control layer |
Product range |
Specification data - Plastics sheets
Material | Polymer-based liquid. |
Purpose | Airtight vapour control layer. |
Performance characteristics | |
Resistant to underground gases | Radon.Guidance for specification option: Radon diffusion coefficient to K124/02/95, 6.5.10-12 D(m2/s). |
Water vapour resistance (minimum) | g value: 80 MNs/g; g value, humidity variable: 0.75–80 MNs/g. |
UV stabilization | 3 months. |
Third-party certification | GEV-EMICODE certifed. |
Form | Liquid. |
Physical properties | |
Colour | Beige. |
Weight (minimum) | 5.5 kg. |
Dimensions | |
Thickness (minimum) | 0.3–1.5 mm.Manufacturer guidanceCoating thickness. |
Water resistance | To EN 1928, W1. |
Sd value | To EN 1931, 16 @ 0.3 mm. SD vapour variability range to EN ISO 12572, 0.15–16 @ 0.3 mm. |
Drying time | 30–120 minutes (temperature, surface and humidity dependent). Manufacturer guidanceDrying times will vary relative to climatic conditions, the humidity of the air and the base material to which it is applied. This can be shorter or longer than stated. |
Sustainability data
Contains Red List materials | No |
Country of material origin | Europe |
Country of product manufacture | Europe |
Material | Polymer |
Expected Life | Lifetime |
Third party certifications
DoP
VARA FLUID DoP
Literature
VARA FLUID SPRAY Technical Data Sheet
Case studies
Partel’s VARA FLUID a Core Component in NYC Passive House