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A brush applied air and vapour control layer (AVCL). Smart membrane.
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:
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:
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 |
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. |
Contains Red List materials | No |
Country of material origin | Europe |
Country of product manufacture | Europe |
Material | Polymer |
Expected Life | Lifetime |
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