Fastback Perfectback Pressure Sensitive, Lay-Flat & Temperature Activated Strips For Fastback 15 & Fastback 20 Strip Binding Machines.
These perfectback strips are different to the standard Fastback Superstrips, as they allow you to bind the inner pages of a book using the strip and then you can wrap around a perfetcback cover on the outside of the perfectback strip. The cover is adhered by either a strong cold-pressure-sensitive adhesive on the outer edge of the binding strip (i.e. if using LF Perfectback or PS Perfectback strips), or by re-heating the book a second time using the fastback 15 or fastback 20 binding machine (i.e. if using TA Perfectback strips).