Introduction
Based on improved design idea, RPB-YX series special shape fireproof intumescent seal combines double functions of impact-resistant and fireproof sealing together, suitable for armored doors.
RPB-YX Serie Bubble Intumescent Seal Installation Diagram
Without fire disaster, the bubble structure plays excellent impact-resistant sound insulation and dust-proof sealing effect when close the door.
When exposed to fire, the bubble part will turn soft and melt quickly and the inside intumescent material will rapidly expand 7-20 times to seal the space between door and frame, help to prevent the fire smoke and heat spreading.
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