Product Code: AC95900
AC95 Acoustic Sealant & Adhesive is an intumescent acrylic sealant and adhesive specifically formulated for fire rated sealing and bonding applications on plasterboard and other kraft lined insulation boards. Provides up to 5 hours fire resistance, tested to BS 476, part 20/EN1366-4 (2006). Acoustic rated to BS EN ISO 140/3. Tested for air permeability to EN13141-1
AC95 is a high strength, permanently flexible acoustic/intumescent sealant and adhesive specifically formulated for sealing and bonding plasterboard and other Kraft lined insulation boards, where a fire rated seal of up to 5 hours is required. Water based, solvent free formula, easy to use and clean up and adheres to just about all building substrates. Non-flammable.
Conforms to BS476 Parts 20/22. Independently tested by Warrington Fire Research, Report Number
144508/B (FEB 2005). Acoustic rated to BS EN ISO 140/3. Tested for air permeability to EN13141-1 Ventilation for buildings. Performance testing of components/products for residential ventilation.
Areas For Use
All surfaces must be clean and dust free. All loose or flaking surface coatings, and old sealant and mastic joints, should be removed before application. Highly porous substrates such as new plaster should first be primed with Everbuild PVA bond diluted 1:4 with water. Surfaces may be slightly damp, but not wet. NOTE: THIS WILL SLOW THE CURE.
Fit cartridge into a 1ltr mastic gun. Cut nozzle to required length and puncture inner membrane seal before applying.
Use as a sealant: Always cut nozzle to a size slightly larger than the gap to be sealed.. Apply to gap, slightly overfilling and finish smooth with a caulking tool or filler knife. Clean up any excess with a damp cloth within 30 minutes of application.
Use as an adhesive for direct bonding to large surfaces: Cut nozzle to provide a bead of approximately 9-10mm diameter, pierce inner membrane and apply a continuous bead to one surface at 250-350mm centers. Apply board immediately to surface and tamp down. Provide temporary support until cured.
Use as an adhesive for bonding to studding: Apply a continuous bead to studding and apply board immediately into position. Do not apply more than one board’s width of studding at one time. Provide temporary support until cured.