CB-TT Halogen Free HEAT SHRINK SLEEVE is halogen-free, flexible, flame retardant heat-shrinkable tubing. This tubing is free of Pb, Cd, Hg, Cr+6, PBB and PBDE. CB-HFT can be used in any enclosed area where a flame-retardant, halogen-free environment is required, such as Metro, skyscraper, mass transit vehicles and ships. The product is UL recognized at 600V and the file No is E180908. All are F mark.