3M™ Tamper Evident Label Materials 7937 is a 2.3 mil matte white VOID polyester facestock with 0.8 mil acrylic adhesive 300 on a 90 lb polycoated kraft liner.
Tamper indicating facestock will void upon attempted removal of label from substrate. Tight void pattern allows for small labels. Matte topcoat resists degradation from scuffing, chemicals, moisture and wide temperature fluctuations. Receptive to dot matrix printing and hand writeable. High tack adhesive bonds well to low surface energy substrates. 90 lb sheetable lay-flat liner. UL recognized and CSA accepted.