Product Description
3M™ Fire Barrier Duct Wrap 5A+ (B40070030) is a flexible, high-temperature fire protection wrap for sheet metal ducts and return-air plenums in building systems. It’s non-flame supporting, low-smoke, and designed to maintain penetration integrity during a fire event.
Key Benefits
- Fire Protection: Wraps sheet metal return-air plenums, rectangular ducts, fan intakes, and non-pressure duct systems.
- Non-Flame Supporting & Low Smoke: Compliant with standards for fire and smoke emissions.
- Flexible & Easy to Install: Flexible design allows wrapping around ductwork and penetration paths.
- Retrofit Friendly: Suitable for both new installations and retrofit projects.
Best For
- Return-air plenums
- Rectangular & non-pressure ducts
- Fan intake protection
- Duct penetrations in fire-rated walls/floors
- New and retrofit HVAC systems
Product Properties
| Property | Specification |
|---|---|
| Product Code (SKU) | B40070030 |
| UPC | 00051115188022 |
| Form | Flexible fire-resistant duct wrap |
| Application | Return-air plenums, rectangular ducts, fan intakes |
| Smoke & Flame Ratings | Non-flame supporting; low-smoke emissions |
| Installation | Wrap around ducts during new or retrofit construction |
| Use Cases | Non-pressure HVAC systems, fire-rated penetrations |




