helogen free heat shrinkable tube is environmentally friendly,flexible,flame-retardant,irradiated cross-linked heat-shrink tube This is halogen free, low smoking, flexible, flame-retardant, irradiated cross-linked ... 1) Shrink ratio: 2:1 2) Very flexible, highly flame-retardant 3) Low shrink temperature and good thermal stability 4) Excellent physical, chemical and electrical properties5) Free of ...