Ideal 31-605 Duct Seal, 5 Pound Block

• Moisture and air barrier
• Seals around junction boxes, flashings and service entrances
• Permanently soft, non-toxic compound can be painted immediately after application
• Won't adversely affect other plastic materials or corrode metals

With Duct Seal by Ideal Industries, you can close oddly shaped holes or gaps with ease. Soft, pliable, non-toxic and paintable, this sealant is great for refrigeration, heating and cooling, plumbing and more, and will not corrode metal or plastic.