3M Fire Barrier Self-Locking Pillows are self contained, highly intumescent firestop products for use in through-penetration firestops.   Simple to use and install, interlocking strips lock pillows together and compressing pillows prior to insertion secures them into the opening.  3M Fire Barrier Self-Locking Pillows offer excellent performance achieving Fire Resistance Ratings of up to 3 hours.  Interlocking strips hold pillows securely together yet release easily for retrofit or reuse – just remove and replace pillows as needed.   Australian standard testing in accordance with AS1530.4.  No wire mesh reduces safety issues & easy to install, easy to remove and reuse.  No cutting and no mess – just lock pillows together, compress and place (use 3M™ Fire Barrier Moldable Putty+ around edges to ensure proper seal).
Pillow sizes available in: Small 51 mm x 102 mm x 228 mm (2" x 4" x 9"), Medium 51 mm x 152 mm x 228 mm (2" x 6" x 9") and Large 76 mm x 152 mm 228 mm (3" x 6" x 9")
Low VOC.

3M™ Fire Barrier Pillows are Stackable and conformable firestop pillows for new and retrofit projects.  Australian standard testing in accordance with AS1530.4& International testing in accordance with EN1366 and ASTME 814 (UL Listed).  Provides up to a 3-hour Integrity rating.  No wire mesh or graphite.  Excellent aging properties
Pillow sizes available in: Small 51 mm x 102 mm x 228 mm (2" x 4" x 9"), Medium 51 mm x 152 mm x 228 mm (2" x 6" x 9") and Large 76 mm x 152 mm 228 mm (3" x 6" x 9")
Low VOC.