3M™ Fire Barrier Pillows are self-contained, intumescent products designed for use in through-penetration firestops, providing up to 3 hours of protection.

Small, 2 in x 4 in x 9 Inch.

• Firestop tested for up to 3 hours of protection in accordance with ASTM E 814 (UL 1479)
• Expands to form a hard char that tightly seals against flame spread, smoke and toxic gases
• Re-enterable and re-useable for new or retrofit installations
• Graphite-free composition does not conduct electricity
• No wire mesh required and easy to install, inspect, remove and reuse as needed
• Excellent aging properties for long-lasting durability and performance

This fire barrier pillow expands to form a hard char that tightly seals against flame spread, smoke and toxic gases. We also engineered this product to be re-enterable and re-useable for new or retrofit installations.

Prevent the Spread of Smoke, Fire and Toxic Gases
Designed for use in through-penetration firestops, such as cable trays, conduit and blank openings, 3M™ Fire Barrier Pillows are self-contained, intumescent products that expand and lock into place during a fire. This helps prevent the spread of smoke, fire and toxic gases. These fire pillows are easy to install and do not require mesh wire. They are ideal for projects requiring re-enterability of a firestop system, simply remove and replace pillows as needed. Constructed with graphite-free composition, which has a high dielectric strength, these fire protection pillows have excellent aging properties, providing long-lasting durability and performance.

Recommended Applications

• Firestopping medium to large openings containing power or communication cables and conduits
• Gypsum wall, concrete or block wall and concrete floors
• Blank openings up to 540 sq. in. (3483 sq. cm)
• 1 or 2 cable racks or trays per penetration
• Conduit bank, inner duct cable and cable racks or tray applications
• Used in conjunction with 3M Moldable Putty+

Reliable and Affordable Fire Protection
Effective and easy to install, 3M™ Fire Barrier Pillows are part of our family of fire protection products that offer the broadest, long-lasting solutions for a variety of commercial, industrial and residential applications. As a trusted leader in the fire protection industry, 3M offers a broad line of affordable products designed to meet the most demanding firestop requirements. Find the solution you need from the industry-preferred line of fire protection products.

Suggested Applications

• 3M™ Fire Barrier Pillows can be used for multiple applications in new or retrofit installations, acting as a through penetration firestop, heat shield and firebreak protection material. The pillows are typically used to firestop gypsum wall, block wall and concrete floor assemblies. 3M™ Fire Barrier Pillows are excellent for firestopping large blank openings or openings penetrated by conduit, cables or cable trays (up to two trays per opening