Concrete floor penetrations, next to a drywall wall assembly prior to taping, as seen from underneath, with plastic, copper and steel piping. Plastic pipe penetrations are fitted with 3M FS195 wrap strips, either in exterior collars or buried within 3M Fire Barrier Mortar to provide a 2 hour fire-resistance rating.
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{{Information |Description=Concrete floor penetrations, next to a drywall wall assembly prior to taping, as seen from underneath, with plastic, copper and steel piping. Plastic pipe penetrations are fitted with 3M FS195 wrap strips, ei
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