Firestop sealant
USG Corp.

Firecode Brand Acylic Firestop Sealant offers a caulk-type firestop sealant ideal for use on construction head-of-the-wall joints and in a wide variety of wall and floor through-penetrations, including metallic pipe, insulated pipe, conduit and copper tubing and pipe. The single-component, water-based product is made from an elastomeric material, so it remains flexible after drying to accommodate movement. It applies easily and quickly using standard caulking equipment.