Used® Duct Sealants Is Designed To Seal Around Junction Boxes, Flashings And Service Entrances.
Used® Duct Sealants are made of non-toxic compounds for long lasting durability and dependability. Permanently soft, non- toxic compound can be painted immediately after application. Won't adversely affect other plastic materials or corrode metals. 10 per carton. Available sizes are 5 lb. block and 1 lb. block. Package quantity is 1.