Coat and Seal
Moisture-resistant hybrid duct sealant that can be used in the most extreme weather conditions – including under water. It remains permanently flexible, is UV resistant, has incredible elongation characteristics and will not shrink or crack like water-based alternatives. It’s safe to say this product is “the bomb”.

Coat and Seal
Description
Moisture-resistant hybrid duct sealant that can be used in the most extreme weather conditions – including under water. It remains permanently flexible and elastomeric, which makes it ideal for exterior HVAC ducting.
With just a 15 mil coverage thickness, this UV resistant duct mastic has incredible elongation characteristics and will not shrink or crack like water-based alternatives. It’s safe to say this product is “the bomb”.