Protape Is An Epdm-Based Self-Adhesive Tape,Specially Made For Adhering The Joints Of Aeroflex Tubes And Sheets. Protape Provides Extra Holding Strength To The Joints And Serves As A Vapor Barrier To Prevent Atmospheric Moisture To Penetrate The Seams. It Is Flexible , Easy To Wrap Or Patch Tightly The Insulation Surfaces.