Intumescent Fire Stop Products
Non-Graphite Based Products
| Product | Thickness | Free Expansion Rate at 500°F | Expansion Starting Temperature (°F) | Description & U.L. Credentials |
|---|---|---|---|---|
| FB-525 | 0.125-3.00″ | 6-8 X | 250-300 | Intumescent Materials U.L. Component Recognized |
| FB-725 | 0.320 +/- 0.040″ | 3-4 X | 250-300 | Intumescent Composite U.L. Approved U.L. System CBJ4016 |
Graphite Based Products **
| Product | Thickness | Free Expansion Rate at 500°F | Expansion Starting Temperature (°F) | Description & U.L. Credentials |
|---|---|---|---|---|
| FB65NH-5 * | 0.125-3.00″ | 10-20 X | 350-400 | Intumescent Materials U.L. Component Recognized |
| FBS 10 NH | 0.060-3.00″ | 80-100 X | 350-400 | High Expansion |
| FIFS | 0.250″ or 0.50″ | 10-14 X | 350-400 | Flexible Intumescent Foam Sheet |
| FBP 15 NH | 0.060-3.00″ | 80-100 X | 350-400 | High Expansion (Similar to the FBS-10NH but slightly less expensive) |
| ALVA-THERM | 0.040″ or 0.080″ | 11-14 X | 350-400 | Thin Intumescent Sheet with Uni-Directional Expansion |
| FS BRICK 27A | 2″ with other sizes available | 3-4 X | 400-450 | Intumescent 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.