So here it is! If you like a half sticky flashing tape- EZ Seal is the ticket! Moistop® E-Z Seal is a high-performance flashing with a self-adhered 3" backing strip that provides secure installation on the inside of the rough opening. The remaining width of the flashing is mechanically attached for easy integration with the weather-resistive barrier. Moistop E-Z Seal provides a strong, tear-resistant barrier to protect windows, doors, and through-wall penetrations from moisture intrusion. Starting your waterproofing assembly with EZ Seal, make it EZ! Pine Cone Lumber-your best choice for quality products.