Edge Adhesives standard butyl gasket tape is comprised of butyl rubber and a proprietary co-polymer. Standard duct gasket tape is not UL certified but serves the same function as our premium duct gasket tape. The basic function of standard butyl gasket tape is to be used for TDC/TDF connections. Our product is extruded onto a release liner ensuring ease of application on the desired surface. Edge Adhesives produces this product in many different sizes and lengths to fit all application requirements. We produce the standard size 3/16” x 5/8” x 25’ along with custom sizing.