RectorSeal Metacaulk 150+ is a one component, general purpose fire-rated sealant, acoustic sealant and smoke seal for construction joints and through-penetrations. Metacaulk 150+ is a water based, non-sag caulking grade sealant that is easy to apply as well as retrofit. Metacaulk 150+ sealant cures to an elastomeric seal that is suitable where dynamic movement is anticipated. In the event of a fire, Metacaulk 150+ sealant will prevent the spread of flames, smoke, hot gases and water through joint openings and through-penetrations. No dilution or mixing is required for use with Metacaulk 150+ sealant. No special skills are necessary for installation. Metacaulk 150+ sealant is applied with a conventional caulking gun. Metacaulk 150+ sealant is rated for up to 4 hours in accordance with ASTM E814 (UL 1479) and ASTM E1966 (UL 2079) test standards. Metacaulk 150+ sealant is protected in both a wet stage and in a dry stage against mold growth with a combination of biocides. Do not dilute since no mixing is required. Metacaulk 150+ sealant is best if protected from freezing. If freezing occurs, thaw completely before using. Keep products stored under protective cover in original containers.
construction joints; both vertical and horizontal
in areas where consistant vibration or movement is apparent
corrugated steel deck floor/ceiling assemblies
not designed to be used in areas under continuous immersion or in areas which would be continuously wet.
should not be used against hot uninsulated surfaces above 300˚F.