Nesco Firestop-814+ is a cULus listed, intumescent firestopping sealant designed to resume the integrity of up to 4 hour fire
rated floors and walls when penetrated by plumbing, electrical, HVAC, and other mechanical items. FIRESTOP-814+ fulfills the
ASTM-E814 standard for through penetraƟon firestop systems and has been cULus tested to demonstrate its effecƟveness as a
barrier against flames, smoke and toxic gases. FIRESTOP-814+ is a non-sag, water based sealant that is suitable for condiƟons
where acƟve movement is expected.
