Pro Tapes Pro 400 is used where an economical, general purpose double coated paper tape with good tensile strength is needed. It is also used for bonding and laminating to a wide variety of plastics, metals, papers, also various types of parts to be machined. Also used in splicing and core start up applications. Pro 400 is a 3.5mil impregnated crepe paper coated on both sides with a 2.5mil rubber adhesive. Liner: 60# white densified Kraft. Carrier: 3.5mil yellow crepe paper. Peel exposed side: 80 ounces per inch, high. Peel liner side: 80 ounces per inch, high. Liner side loop tack: high. Liner side RT shear: moderate. Exposed side loop tack: high. Exposed side RT shear: moderate. Shear exposed side: 7+ days. Shear liner side: 7+ days. Total thickness: 8.5 mils. Service temperature: 30 degrees F to 150 degrees F. Features includes quick stick, good adhesion, good tensile strength, short term, high temperature resistance, permanent bond, highly conformable. Applications includes mounting, bonding, splicing, laminating. Measures 36 yards length by 3/4-inches width.