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Lorient Intumescent Sealant

Intumescent Mastic Data Sheet
Data Sheet
Intumescent Mastic

Lorient Intumescent Sealant is a versatile seal solution to fill gaps and movement joints; and for use where rigid seals are impractical.
When exposed to fire, Lorient Intumescent Sealant
expands in volume to fill all cavities; providing a
necessary hot smoke seal.
It is suitable for sealing gaps between fire resistant
walls and floors, between conduits and walls/floors
and between fire resistant walls and structural
supports. Lorient Intumescent sealant is also
recommended for sealing the perimeter of fire and
smoke resistant damper/air transfer grilles.
Key benefits
Successfully fire tested in accordance with
BS 476 Pt. 20:1987.
It can provide effective acoustic containment.
Specially formulated for adhesion to a wide range of
materials including: wood; metal; plastic; concrete;
masonry and plasterboard materials.
Flexible - it tolerates differential movement in
everyday service.
Water based - therefore easy to clean up.
It can be neatly injected into otherwise
inaccessible areas.
Smooth gunnability and tool off finish.
Paintable (if the sealant is to be overpainted, Building Regulations may require a fire resistant coating).
Range of colours;
White or Gray
Supplied in individual 310cc cartridges or in boxes of 25 units.

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