Intumescent sheet used to firestop large openings. Seals penetrations against flame spread, smoke and toxic gases. This composite sheet has multiple applications, including blank openings, through penetrations of multiple cable, pipe ducts, bus ducts and cable trays. The fire-resistive intumescent sheet is bonded on one side to a layer of 28-gauge galvanized steel. The other side is reinforced with hexagonal shaped steel-wire mesh and covered with an aluminum foil scrim.
- Firestop tested for up to 4 hours in accordance with ASTM E 814 (UL 1479)
- Intumescent (expands with heat) to form a hard char that tightly seals penetrations against flame spread, smoke and toxic gases
- Multiple applications: through-penetration firestop, heat shield and firebreak protection
- UL-classified: meets all code requirements
- 100% solids
- Lightweight: easy to handle, just cut and form to desired shape
- Re-enterable for new or retrofit installations
- Easy to fasten: bolt-punch or drill-through
- No mixing or damming: installs easily with screws or anchor bolts
- Versatile: can be cut to fit irregular shapes
- Thermally conductive: allows unwanted heat buildup to escape
- Easy to install using common trade tools