3M™ FireDam™ Spray 200

M™ FireDam™ Spray 200 is a sprayable material that dries to form a tough, elastomeric coating. It will firestop building joints, curtain wall perimeter joints and through penetration seals to control the transmission of fire, heat, smoke and noxious gas. This water-based firestop sealer is applied with conventional airless sprayers, dries quickly and cleans up easily.

Product Description

3M™ FireDam™ Spray 200 is a red, intumescent, fire‑stop spray coating formulated to seal annular spaces and penetrations within fire-rated wall and floor assemblies. When exposed to high heat, the product expands to provide a barrier that helps preserve the integrity of structures and fire ratings.

Key Benefits

  • Heat-Activated Expansion: Intumescent formula expands under fire exposure to fill voids and prevent flame and smoke passage.
  • Easy Application: Spray-on delivery allows rapid coverage of irregular gaps around piping, conduit, and structural elements.
  • Fire-Rated Sealing: Designed to help maintain UL/other certification when used as specified.
  • Durable Finish: Adheres to a variety of substrates and provides long-term protection when properly cured.

Best For

  • Piping and conduit penetrations
  • Firestopping of cabling bundles
  • Annular space sealing in walls and floors
  • Retrofit and new construction firestop applications
  • Building systems requiring passive fire barriers

Product Properties

Property Specification
Product Code B40065450
Form Sprayable intumescent coating (red)
Packaging 5‑gallon pail
Application Spray to fill annular space around penetrants
Fire Protection Provides passive fire barrier via intumescent expansion