Duct Sealing Compound is a permanently pliable and non-cracking material which can be painted. A gray, non-toxic, non-corrosive and non-irritating compound will adhere to most clean, dry surfaces with no adverse effects on plastic or metals. There is no reaction when used with bare hands.
Additional Info: Supplied in a block overwrapped with release paper, and then bagged into a clear PVC bag (which can be reused and resealed) along with application data. Dielectric strength: 100V/mil. Tolerance range is 40º to 194ºF.