3M Company

The Fire-Barrier Duct Wrap 615+ is a fire-resistant wrap that is lighter and thinner and meets the new ASTM E 2336 fire test requirements. Made from an advanced ceramic fiber wrapped in scrim-enforced foil, the wrap is a lightweight, thin-profile insulation product that provides up to two hours of fire protection for grease and air ventilation ducts. The product installed around ducts creates a fire-resistive barrier that maintains the duct integrity and helps prevent fire from rapidly spreading throughout a building. The light-weight product makes the two-layer installation process easier. It weighs only six pounds per cubic foot, about two pcf lighter than previous wraps so it is even easier to use.

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