Everbuild AC95 Intumescent Acoustic Sealant & Adhesive – 900ml

The Everbuild AC95 acoustic sealant is one of those products that earns its place on the van. It does two jobs at once: it seals acoustic gaps and bonds boards as part of fire-rated partition systems. That means less fumbling around with separate tubes and fewer products to price into the job. If you are working on acoustic wall or floor systems where fire performance also matters, AC95 is the product specified for the purpose.

The intumescent element is the part that matters most in a fire situation. When exposed to heat, the sealant expands and seals the gap, preventing fire and hot gases passing through the junction. That performance is what gets these systems their fire ratings, so it is not something to substitute with a standard acoustic sealant and hope for the best.

Where Everbuild AC95 Acoustic Sealant Gets Used

This product is used by drywall fixers, partition installers and acoustic specialists working on commercial and residential projects where both sound reduction and fire containment are required. It is commonly used at junctions between partitions and structural floors and ceilings, around the perimeter of acoustic wall systems, and at service penetrations. It is also used to bond acoustic boards to each other or to structural backgrounds as part of the wider system build-up.

Compatibility with Acoustic Systems

AC95 is formulated to work within Everbuild’s broader acoustic system, which includes acoustic quilt, acoustic flanking tape, and acoustic floor compounds. Using the right products together is what delivers the published acoustic and fire performance figures. Specifiers and contractors on projects with acoustic or fire performance obligations often have to demonstrate compliance, so it is worth keeping the product data sheet and relevant approvals on file.

The 900ml cartridge suits high-volume use well. A standard 380ml cartridge runs out quickly on a busy partition job. The larger format reduces how often you are swapping cartridges and keeps the work moving at a sensible pace.