Scotch® Light Duty Packaging Tape 681 is a transparent film tape designed for heat-shrink packaging applications. The UPVC backing material is moisture and chemical resistant. The natural rubber adhesive is sticks to difficult substrates and removes cleanly. It is FDA compliant for indirect food contact. - Scotch tape 681 is an excellent high tack, transparent film tape used for various packaging applications such as temporary holding, combining, light duty carton sealing, bag sealing and attaching.