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Intumescent Fire Stop Manufacturing. Selling Internationally.

Intumescent Fire Stop Products Overview

Non-Graphite Based Products

ProductThicknessFree Expansion Rate at 500°FExpansion Starting Temperature (°F)Description & U.L. Credentials
FB-5250.125-3.00″6-8 X250-300Intumescent Materials
U.L. Component Recognized
FB-7250.320 +/- 0.040″3-4 X250-300Intumescent Composite
U.L. Approved
U.L. System CBJ4016

Graphite Based Products **

ProductThicknessFree Expansion Rate at 500°FExpansion Starting Temperature (°F)Description & U.L. Credentials
FB65NH-5*0.125-3.00″10-20 X350-400Intumescent Materials
U.L. Component Recognized
FBS 10 NH0.060-3.00″80-100 X350-400High Expansion
FIFS0.250″ or 0.50″10-14 X350-400Flexible Intumescent Foam Sheet
FBP 15 NH0.060-3.00″80-100 X350-400High Expansion
(Similar to the FBS-10NH but slightly less expensive)
ALVA-THERM0.040″ or 0.080″11-14 X350-400Thin Intumescent Sheet with Uni-Directional Expansion
FS BRICK 27A2″ with other sizes available3-4 X400-450Intumescent Fire Stop
Foam Brick 2″ x 5″ x 8″

* 65 NH is more expensive than the other graphite compounds with similar performance, but is a U.L. Component Recognized Material.

** Typically the graphite-based products will expand more, compact, and form a hard char as they fill an enclosed area as compared to the non-graphite-based FB-525 that will expand freely and form a hard char. Generally, the high expansion graphite-based products will also exert greater pressure than the non-graphite-based products when they are confined.

We can customize a formulation to result in the desired expansion if none of the above meets your needs.

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