Product Description
3M™ Fire Barrier Self-Locking Pillows are self-contained firestops ideal for medium to large through penetrations. They feature interlocking strips that allow installers to easily lock multiple pillows together by hand, achieving precise fill and compression without the need for additional supports or tools. Intumescent fire-rated pillows are designed to expand during a fire, locking themselves around vital components to help prevent the spread of flames, smoke, and toxic gases.
Key Benefits
- Intumescent Expansion: Pillows are designed to expand and lock together for tight seal against flame, smoke, and toxic gases.
- Easy Installation: Installers can easily lock multiple pillows together by hand for fast, accurate firestops.
- Re-enterable Design: Easy to remove and reseal, allowing for future modifications or maintenance without tools.
- Time and Labor Savings: No wire mesh, additional supports, or steel cover plates required.
- Reliable Fire Protection: Firestop tested for up to 3 hours in accordance with ASTM E 814 (UL 1479) and CAN/ULC-S115.
- Multiple Sizes Available: Allows for precise fill and compression for specific penetrations.
Best For
- Power or communication cable penetrations
- Gypsum wall assemblies
- Concrete block walls and concrete floors
- Blank openings up to 540 sq. in. (3483 sq. cm)
- 1 or 2 cable racks or trays per penetration
- Conduit banks and cable trays
- Data centers and telecom applications
- Commercial and industrial construction firestop
Product Properties
| Property | Specification |
|---|---|
| Application | Commercial Construction |
| Brand | 3M™ |
| Case Quantity | 20.0 Bags per Case, 24.0 Bags per Case |
| Fire Rating | Up to 3 hr |
| Product Color | Red |
| Product Form | Pillow |
| Product Type | Pillow |
| Smoke Seal | Yes |
| Water-tight | No |
| Minimum Concrete Thickness (Imperial) | 2.5 in |
| Minimum Concrete Thickness (Metric) | 63.5 mm |
| Overall Length (Imperial) | 9 in |
| Overall Length (Metric) | 229 mm |
| Overall Thickness (Imperial) | 2 in, 3 in |
| Overall Width (Imperial) | 5 in, 6 in |
| Overall Width (Metric) | 102 mm, 152 mm |




