Verified by manufacturer 7 days ago
Polythene DPC
A cavity closer for fire, thermal and acoustic insulation.
Designed to be used for masonry cavity wall construction. Suitable for vertical and horizontal application.
A cavity closer for thermal, acoustic and fire insulation, which reduces cold bridging when used for door and window openings. It consists of a strip of engineered stone mineral wool insulation laminated to a polythene DPC. It is produced in a range of sizes to fit cavity widths up to 100mm within masonry systems.
Features and benefits:
Mayplas FR Reveal Cavity Closer has been independently tested in accordance with BS EN 1366-4:2021 and classified in accordance with BS EN 13501-2:2023 for 120 minutes Integrity and 60 minutes insulation (vertically) and 15 minutes insulation (horizontally)
Material | Mineral wool |
Shape | Rectangle |
Height | 37 mm Guidance for specification option: For 25 mm wide cavity. 40 mm Guidance for specification option: For 30 mm wide cavity. 50 mm Guidance for specification option: For 40 mm wide cavity. 60 mm Guidance for specification option: For 50 mm wide cavity. 70 mm Guidance for specification option: For 60 mm wide cavity. Manufacturer guidanceThickness of insulation. |
Uniclass | |
CAWS | F30/18 Cavity closers F30/180 Cavity closers |
Residual cavity width | 25 mm. 30 mm. 40 mm. 50 mm. 60 mm. 70 mm. 80 mm. 90 mm. 100 mm. |
Fire performance | 120 minutes to BS EN 13501-2. Guidance for specification option: Vertically and horizontally. Tested to BS EN 1366-4. Manufacturer guidanceResistance to fire of product. |
Thermal Conductivity: | 0.035 W/mK. |
Standard | To BS 6515. |
Material | Polythene. |
Colour | Black. |
Length | 1300 mm. Guidance for specification option: Overlapping stone mineral wool insulation by 100 mm at the bottom of the cavity closer. |
Width | 180 mm. Guidance for specification option: Overlapping stone mineral wool insulation 40 mm either side. |
Material | Mineral wool |