Constructed of a glass cloth backing and a thermosetable rubber adhesive, 3M Thermosetable Glass Cloth Tape 3650 is an excellent choice for applications requiring high adhesion for a variety of surfaces. It excels in splicing many materials with rough surfaces or low internal strength such as roofing felts and textiles. It is a linered version of 3M Thermosetable Glass Cloth Tape 365.