[. . . ] Adhere pad to side of the box, overlapping the stud and all edges of the box. [. . . ] Trim excess at corners and apply to conduit fittings connected to the box. To help prevent passage of cold smoke, CP 617 may optionally be placed into inside of electrical conduit fittings. Notice about approvals · CP 617 Firestop Putty Pad is classified by Underwriters Laboratories, Inc. , (UL) as a "Wall Opening Protective Material. " Therefore, specific UL listings are not required. Specific details can be found in the Hilti Firestop Inspection and Installation Manual and/or current UL Fire Resistance Directory, Volume I. · In areas underwater Safety precautions · Before handling, read the product Material Safety Data Sheet and product label for detailed use and health information. [. . . ] Storage · Store only in the original packaging in a location at temperatures 40°F (5°C) to 104°F (40°C). [. . . ]