Self Adhesive Labels | Products & Suppliers | Engineering360 Description: FLEXIMARK® LB self-adhesive labels are for use with FLEXIMARK® Software 10.0 to customize your own labels.The LB labels are for use with laser printers and are made of polyester foil. These labels can also be customized with the special MS marker pen.. Material: Polyester (PET / PBT) Operating Temperature: -40 to 125 C; Type: Labels, Other