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Thermoguard Intumescent Fire Resistant Mastic 300ml

£4.19 (inc. VAT)
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Thermoguard Intumescent Mastic is an easy to apply sealant that helps give surfaces a five hour fire barrier with the added advantage of having excellent sound reduction properties. It is permanently flexible and boasts excellent slump resistance so Thermoguard Intumescent Mastic is ideal for sealing gaps around fire doors, window frames and for sealing joints of up to 50mm, voids and irregular holes in fire rated structures. When exposed to the heat of a fire Thermoguard Intumescent Mastic forms a char, preventing the passage of fire and smoke.

Uses for Thermoguard Intumescent Mastic:
  • Block wall, concrete, masonry and plasterboard partitions
  • Linear joints up to 50mm wide in concrete floors, masonry walls and plasterboard, including head of wall details
  • Metallic pipes, cable trays, cable bunches, small, medium and large cables
Thermoguard Intumescent Mastic has been independently tested in accordance with BS476 and EN requirements. It can provide up to 300 minutes of fire resistance depending on the depth/width and volumetric area - please call us on 0753 684084 or email for further information.

Thermoguard Intumescent Mastic has good unprimed adhesion to a wide variety of common building substrates. We recommend that a small area is tested if it is an unusual substrate.

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