SAXON Graphite Pressure mastic is an intumescent firestop sealant that helps to prevent passage
of fire and smoke. It is intended for use in service penetrations passing through fire rated walls and
can provide up to 4 hours integrity and insulation when used correctly.
It is a water based acrylic resin formulation that quickly dries on application to a flexible and
cohesive sealant. It is smoke, gas and water resistant, halogen free and being water based, easy to
clean up.
APPLICATIONS
Designed for the sealing, in combination with mineral wool, of small to medium size penetrations of
pipes and single or bunched cables in openings up to 300 cm2.
It can be used with plastic pipes, uninsulated and insulated metal pipes and bunched or cable tray
supported cable penetrations
It can also be used for filling fissures and gaps in firewalls and floors. The dry mastic is paintable.
FIRE TESTING
Tested in accordance with BS EN 1366 Part3