Fiber Impregnated for Strength Clings to Glass Won't Stretch Out of Shape CRL Sealstrip holds glass firmly and for keeps. Seals against dirt, moisture and weather. Insulates against sound and vibration, and won't stretch out of shape. It's thin enough so it doesn't crowd the glass and cause cracking or breaking. Just fold it over the glass edge, insert glass in metal frame or channel, and trim with a knife or razor blade. Thickness of Tape: 1/32 in (.8 mm) Width of Tape: 1-1/2 in (38.1 mm) Feet per Roll: 100 ft (30.5 m) Minimum Order: 1 Roll Technical Specifications: Specific Gravity - 1.24 Tensile Strength - 275 Elongation % - 100 Durometer - 60