TRANSPET® SP640A is a shrink sleeve, low shrink force heat-shrinkable polyester film with versatile shrinking characteristics that minimize smiling phenomena. SP640A is a suitable replacement for many OPS and PVC appliations and can be used in either hot air or stream tunnel sleeve applications. It's shrink force makes this film suitable for a wide variety of decorative and protective shrink sleeve applications, including lightly contoured containers and protective neckbands as well as thin-walled containers.