Application of identification label completes pass-through firestop Highly Visible for Your Firestop In fire-rated construction applications and firestops, it's crucial to have the necessary information clearly visible. 3M Firestop Identification Labels can be applied quickly and reliably to clean, dry, frost-free surfaces in order to provide the required information regarding firestop maintenance, repair and inspection. These identification labels are bright red with a bright white backing for maximum visibility. Recommended Applications For use in labeling penetration and joint firestops Learn More about 3M Fire Barrier Putty Sleeve Kits (PDF, 741.4 Kb) Providing the Messaging that Matters In fire-rated construction, where testing is rigorous and codes are strongly enforced, it's crucial to meet the necessary requirements. 3M Firestop Identification Labels are designed to deliver the messaging that matters by acting as a highly visible, quick-stick labeling system that can easily be written upon and easily read by workers and inspectors alike. See More 3M Fire Protection Product Applications (PDF, 796.59 Kb)