Adhesive Tape: A Full Technical Guide [2020 Edition] | ECHOtape Technically speaking, that's a bonding pressure of 14.5 - 29 psi =^ 10 - 20 N/cm² or greater. Single-sided tapes allow bonding to a surface or joining of two adjacent or overlapping materials. Double-sided tape (adhesive on both sides) allows the joining of two items back-to-back.