1" x 60 yds. 3M - 2525 Flatback Tape. Use for holding, splicing or masking applications where high adhesion strength, high temperature capability and high backing strength are required. Resistant to moist conditions. Withstands bake cycle of 300 degrees F. for one hour. Not recommended for outdoor applications or prolonged periods of sunlight exposure as tape may become very difficult to remove. 2% elongation at break. Rubber adhesive. Case of 36.SHPT9452525. T9452525. 3m 3m 2525 Flatback Tape.