OverviewThe B-342 polyolefin PermaSleeve material is a non-adhesive, heat-shrinking sleeve that fits around wires or cables for easy permanent identification3:1 heat-shrinking wire marking sleeve is ideal for labeling in harsh environments and is resistant to exposure to chemicals, grease, oil, and cleaning agentsFlame-retardant and cold-resistant with an operating temperature of -67° F to 275° F (-55° C to 135° C)Meets SAE-AMS-DTL-23053/5C (Class 1), SAE-AS-81531, MIL-STD-202; RoHS Compliant; and UL RecognizedPermaSleeve wire labels are an indispensable asset for electrical contractors, maintenance crews, construction teams, and industrial professionals