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Multifix 903 Intumescent acoustic and acrylic sealant mastic that swells at temperatures over 125?C to prevent the spread of fire, heat and smoke. It is used for sealing around doors, pipes and cables to retain the integrity of the fire break. It is fire tested in accordance with BS EN 1366-4, BS476-20 and BS476-22.4-hour integrity and insulation rating for a range of linear and penetration seals
£3.10 inc. VAT
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