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Fire-teK® INT FLX
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Fire-teK® INT FLX is a flexible, intumescent material made with expandable graphite that expands under high pressure when exposed to heat.
Special feature: In the event of a fire, it expands into a highly pressure-resistant and stable mass. Fire-teK INT FLX is also generally resistant to moisture.

APPLICATION
The product is used in the Fire-teK® DuctProtect 60 R system to seal the joints.
This product can only be used for this system application. For further information, please
refer to our installation instructions for the system.

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Fire-teK® INT FLX
Description & Details
Documents

Description & Details

Fire-teK® INT FLX is a flexible, intumescent material made with expandable graphite that expands under high pressure when exposed to heat.
Special feature: In the event of a fire, it expands into a highly pressure-resistant and stable mass. Fire-teK INT FLX is also generally resistant to moisture.

APPLICATION
The product is used in the Fire-teK® DuctProtect 60 R system to seal the joints.
This product can only be used for this system application. For further information, please
refer to our installation instructions for the system.

THERMAL CONDUCTIVITY CALCULATOR

Downloads

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Technical Data Sheets
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Technical data sheet Fire-teK INT FLX
pdf/17 Jun 2025/144.3 KB
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Technical data

Attribute nameSymbolValueUnitNorm
Reaction to fireE
Product typeAccessories
Insulation solution for:HVAC