1/2 IN, Expandable Sleeve, Expands: 3/4 IN, Polyester, Black/White Tracer, Techflex, FRN0.50TBFlexo Flame Retardant, Economical Sleeving Solution FLEXO FLAME RETARDANT (FRN) sleeving is the perfect choice for electronic and high tech applications where flame retardance and durability are primary concerns. Ease of installation makes Flexo FR an efficient choice for long runs of wire or cable. The addition of an organic combustion inhibitor to our standard polyethylene terephthalate gives Flexo FR an Underwriters Lab and CSA flame resistance rating of VW-1.Mfr: TechflexSeries  Flexo® FRType  Expanded SleeveType Attributes  ExpandableDiameter – Inside, Non-Expanded  0.375″ (9.53mm)Diameter – Inside, Expanded  0.625″ (15.88mm)Diameter – Outside, Non-Expanded  –Material  Polyethylene Terephthalate (PET), Halogen FreeColor  Black, WhiteWall Thickness  0.025″ (0.64mm)Operating Temperature  -70°C ~ 125°CHeat Protection  Flame RetardantAbrasion Protection  Abrasion and Cut ResistantLiquid Protection  Gasoline ResistantFEATURES:VW-1 ApprovedMil-202, FAR 25, FMVSS 302Cut and Abrasion ResistantExpands up to 150%Halogen FreeResists Gasoline and Engine ChemicalsTemperature Range -94F to 257FMelt Temp. 482°FMore Product Information about TechFlex Flame Retardant Expanded Loom