Nelson Firestop Bricks – Reusable Fire Barrier Block System

Firestop Brick is designed for applications where re-penetration of an opening may be required, offering easy repositioning as needed. When exposed to fire, the material expands within the opening to form a solid char, helping prevent fire from passing through the penetration for up to 2 hours.

This firestop solution is well suited for cable or cable tray penetrations due to its versatility. As an economical, durable, and labor-saving material, Firestop Brick provides a practical option for maintaining fire protection in adaptable installation environments.