Fire Rated Deflection Bead
MarinoWare Fire Bead is a patent-pending composite fire rated wall mount deflection bead that provides 1- and 2-hour fire-ratings in lieu of fire sealant for both dynamic and static joints according to UL-2079 5th Edition (for both standard walls and shaft walls) and is sound tested according to ASTM E90.
The 1-hour profile has a 1/2" gasket with a 5/8" flexible horizontal return leg. The 2-hour profile has a 1/2" gasket with a 1 1/4" flexible horizontal return leg.
The bead also provides an L-rating less than 1 CFM/lf for ambient and 400°F. It is installed fully cured, is not affected by water or moisture and has no temperature restrictions for installation.
Fire Bead has 2 separate compressible sealing points, one against the concrete deck and one against the framing member to prevent sound flanking.
The pink perforated mud leg indicates to the installer and inspector that the vinyl accessory is fire rated.
Fire Bead will stay flexible for the life of the assembly.
Fire Bead comes in 10' lengths with a 5/16" tear-off leg that acts as a guide to apply joint compound with-out masking off adjoining surfaces.
UL listings/approvals include HW-D-0624; HW-D-0625; HW-D-0554; HW-D-0550; BW-S-0024; WW-D-0104.