Envirograf Intumescent Expansion Joints
Compressible fireproof sponge strips with foil-clad intumescent material on one or two sides, for use as movement or expansion joints. They are easy to install and unaffected by water or chemicals.
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Intumescent expansion joints are a composite, compressible, and foil-clad intumescent strip. Unaffected by water or chemicals, they are easily installed, and are available in three types of widths and lengths. Useful as movement or expansion joints in fire walls, floors, concrete slabs, and steel work, or as a cavity joint between brickwork and timber structures. They can be used around ventilation ducting as a movement and anti-vibration joint, using double-sided tape to adhere to the ducting, and can also be fitted to seal over the tops of cable trays passing through protected building elements.
Extremely versatile, providing up to 240 minutes protection in a range of applications, for example:- As movement or expansion joints in fire walls, floors, concrete slabs and steelwork
As a cavity joint between brickwork and timber structures
Around ventilation ducting as a movement and anti-vibration joint
As a seal over the tops of cable trays passing through protected building elements
Made in a range of sizes to suit gaps up to 120mm wide, the expansion joints are easily installed giving protection to both horizontal and vertical gaps. Simply compress into narrow gaps or apply to one side of a wider gap, using double sided tape on one face to adhere in place.
The sponge and intumescent expansion joint allows for movement but, in the event of a fire, will completely fill the gap.
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