Everbuild Everflex AC95 Intumescent Acoustic

Everbuild SKU: 100825
Everbuild Everflex AC95 Intumescent Acoustic - HomeFix

Everbuild Everflex AC95 Intumescent Acoustic

Everbuild SKU: 100825
£2.99(inc VAT) Regular price £5.99(inc VAT) Sale price
(inc VAT) /

Pre-Order Item – Up to 10 Working Days

Everbuild Everflex AC95 Intumescent Acoustic is used to form an acoustic and intumescent barrier by sealing gaps between plasterboard walls, floors and ceilings and dry lining applications. As an adhesive to bond plasterboard to plasterboard and to bond plasterboard to wood and metal studding and direct to block work.

Price Includes VAT

Everbuild Everflex AC95 Intumescent Acoustic

  • Provides up to 4 hours of fire resistance
  • Non-flammable
  • Easy cleanup
  • Adheres to most surfaces
  • Excellent acoustic and intumescent barrier
  • Tested for air permeability to EN13141-1 Ventilation for buildings. Acoustic rated to BS EN ISO 140/3

Available in 900ml cartridges

Everbuild Everflex AC95 Intumescent Acoustic is an intumescent acrylic sealant and adhesive specifically formulated for fire rated sealing and bonding applications on plasterboard and other kraft lined insulation boards.

How To Use

Fit the cartridge into a 1litre mastic gun. Cut the nozzle to the required length and puncture the inner membrane seal before applying.

To Use As A Sealant

Always cut the nozzle to a size slightly larger than the gap to be sealed. Apply to the 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 9-10 mm diameter, pierce the inner membrane and apply a continuous bead to one surface at 250-350 mm centres.

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 on


  • Damp or humid conditions will significantly extend the cure time
  • Do not attempt to abrade when cured. Do not overpaint until the product has fully cured. This will normally be 24 hours but maybe 4-5 days in damp, cold or humid conditions
  • Do not apply below 5 °C. For overhead boarding applications, always use in conjunction with mechanical fixings.

Everbuild Everflex AC95 Intumescent Acoustic Datasheet

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