This Intumescent Acoustic Mastic is a one part intumescent acrylic mastic for sealing gaps around fire doors, window frames and for sealing joints, voids and irregular holes in fire rated structures. The sealant forms a char, preventing the passage of fire and smoke, when exposed to the heat of a fire.

Maintains fire integrity when sealing around pipes and cables that penetrate walls, tested in Block Wall, Concrete, Masonry and Plasterboard Partition. Suitable for flexible walls, rigid walls & floors, Tested in Linear Joints up to 50mm wide. Tested in large service openings up to 490 x 150mm, tested for sealing of linear joints in concrete floors, masonry walls and plasterboard including head of wall details. Tested around metallic pipes, cable trays, cable bunches, small, medium and large cables.

• CE Marked : Certifire approval

• UL-EU, UL-C, UL-US Listed

• Intumescent Mastic with Acoustic Rating

• Advanced intumescent formulation

• Tested to EN 1366-4:2006 AI:2010

• Fire resistance testing to ASTM-E 1996, UL 2079

• Fire resistance: EN 1366-3 EI 120, EN 1366-4 EI 240 and BS 476 300 mins

• Fire Classification to EN 13501-2

• Acoustic Isolation to EN 10140 to 63dB

• Air Permeability testing to EN 1026 to 600Pa - 100Pa 0.0/0.0 m3/h/m2

• Mechanical Adhesion and Tensile testing to EN ISO 8039 & EN ISO 9046

• VOC LEED 2009 EQ c41.1 5CAQ MD, Rule 1168 ASTM D2369D

• Tested with Metallic Pipes, Cables, Cable Bunches, Cable Trays and Cable Ladders

• Causes no known adverse effects to plastic pipes, plastic cables, sheathing or metallic components

• Joint movement capability of +/- 20%

• Highly flexible and water resistant

• Halogen free, resists fungi and vermin

• Contributes to Green Building