66331, Fire Rated Mortar – Firestop Solution 66331 Fire Rated Mortar by RectorSeal is designed for use in firestop applications, providing fire-resistant sealing for electrical, cable, pipe, and duct penetrations. This product is suitable for electrical distributors and switchgear suppliers requiring reliable firestop materials to maintain fire integrity in building systems. Specifications Product Weight: 22.3800 lbs Manufacturer: RectorSeal Manufacturer Part #: 66331 UPC: 021449663311 Features Fire Rated Mortar suitable for sealing and protecting penetrations in fire-rated walls and floors Complies with firestop requirements for electrical, cable, pipe, and duct applications Packaged in a container designed for ease of use on-site Backed by RectorSeal’s industry-recognized quality standards Downloads & Links Warranty