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.If you read this article, please circle number 341