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.Tape that Withstands Our 3M Thermosetable Glass Cloth Tape 3650 is a white glass cloth tape with thermosetable rubber adhesive. It is designed for splicing textured surfaces, especially those materials which might require high tensile strength at elevated temperatures. The conformable backing provides high tensile strength and good solvent resistance. It will not shrink or rot, and is tough and durable with superior abrasion and puncture resistance. This tape will perform under a wide range of temperatures ranging from 40°F/4°C to 450°F/232°C. 3M Thermosetable Glass Cloth Tape 3650 is a linered version of our 3M Thermosetable Glass Cloth Tape 365 and an ideal choice for die-cut applications. 3M Thermosetable Glass Cloth Tape 3650 features a rubber adhesive that provides good initial adhesion and high tack. When subjected to a thermosetting cycle it will cross-link, providing adhesion and bond strength, and higher heat resistance. Thermosetting is frequently achieved by ironing or heating the backing once the tape is applied. High adhesion is obtained by optimizing the time, temperature and pressure of the heat applied. Recommended Applications • Splicing and insulating applications requiring high tensile strength at elevated temperatures • As a corrosion resistant wrap on stainless steel hot air ducts • Splicing materials with rough surfaces or poor internal strength such as roofing felt, fiberglass or textiles • Die cut applications