Heat-Shrink PermaSleeve HX Polyolefin (B-7642) Wire Marking Sleeves are 2:1 heat shrinkable, high-temperature rated, highly flame retardant and very flexible. Supplied roll form in a flattened format on a carrier designed for use with computer driven printers RoHS compliant to 2005/618/EC MCV amendment to RoHS Directive 2002/95/EC; Meets SAE-AMS-DTL-23053/5 Class 1 3, SAE-AS-81531, MIL-STD-2002; Tested per ASTM E162 and ASTM E662 Operating temperature of -40 F to 248 F (-40 C to 120 C)