The 3M™ Expantrol Flexible Intumescent Strip E-FIS is an intumescent tape that expands in a fire to seal door frames and glazing applications to help prevent the passage of fire, smoke and toxic gases.The 3M Expantrol Flexible Intumescent Strip E-FIS is designed to seal the air space between doors and frames and for glazing fire-resistant glass to help prevent the passage of smoke and flames in the event of a fire. When exposed to heat such as would occur in a fire, the material expands to seal the gap and forms a char to deter the spread of a fire and to help prevent noxious gases, flames, or other by-products that may be produced in a fire from penetrating into adjacent areas.
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Other Details
Can be cut required length
Documented aging properties
Excellent flexibility for easy and cost-effective installation
Intumescent material expands when heated to seal around objects exposed to fire
Low flame spread and smoke development
Re-enterable (no special tools required)
Smoke seal retards spread of toxic by-products of combustion
