High-quality 3M 6890 packing tape has a PVC backing layer that is resistant to moisture and chemicals and unwinds with low noise. The adhesive has a special formulation that provides high initial tack and adhesion to fiberboard and cardboard, as well as resistance to shear stress. The tape is suitable for sealing boxes with heat shrinking and other applications requiring heat shrinkable tape. Technical specifications adhesive:rubber resin carrier:PVC total thickness:0.05 mm temperature resistance:70 °C UV resistance:good moisture resistance:very good chemical resistance:very good