Metacaulk MC 150+ is an elastomeric, one component, general purpose firestop sealant

Fire rated sealant and smoke seal for construction joints and through-penetrations on both horizontal and vertical surfaces

Water-based, non-sag caulking grade sealant that is easy to apply as well as to retrofit

Cures to a paintable flexible seal

Prevents the spread of flames, smoke, hot gases and water through joint openings and through-penetrations

Can be used in areas under constant vibration or movement

Excellent ze/thaw

for metal, fiberglass and plastic pipes, wall construction joints, power and telephone cables

Tested to ASTM G21 mold inhibitor

Sound Transmission Class (STC) rating 65

(ASTM E90) VOC compliant

3 year shelf life

Meets ASTM E814, Standard Test Method for fire tests of Penetration Firestop Systems