Internally slotted fire seal

摘要: A fire-resistant seal for application to a structure, comprising holder securing the tubular portion, barrier material which swells under fire-conditions being retained within portion of holder, having an elongate actual or incipient opening extending therealong, also lateral extension, extension and together forming groove, in side groove constituting guard opening. The may serve conceal from view and/or obstruct introduction straight probe into by tamperer. When is exposed hot smoke flame, fire resistant exudes through form barrier.