PermaSleeve® PS Heat-Shrink Polyolefin (B-342) wire marking sleeves combine speed, ease of use, and permanence to create long-lasting, high quality identification. 3:1 heat shrinkable sleeve fit snugly around wires for maximum insulation protection and permanent identification Fade-resistant and smudge-proof for superior aesthetic appearance Cold resistant and flame-retardant 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 Recognized A ribbon is required to print this material. Use Part Number IP-R6600 for the BradyPrinter i5100 or BRADY IP® Series Label Printer; use R6600 for a different printer Material Characteristics Material Number B-342 (View Technical Data Sheet) Material Heat-shrink Polyolefin Material Properties Flame-retardant, Heat-shrinkable Label Properties Heat Shrink Finish Matte Color White Resistance Properties Chemical-resistant, Corrosion-resistant, Humidity-resistant, Smear-resistant, UV-resistant, Weather-resistant Shrink Ratio 3:1 Service Temperature Range °F -67 °F - 275 °F Minimum Service Temperature °F -67 °F Maximum Service Temperature °F 275 °F