DRS (ZRG) Low Temperature Flame Retardant Heat Shrinkable Tube is used in a variety of applications in the electronics, automotive, military & aerospace sector including: Mechanical Protection | Abrasion Protection | Strain Relief | Moisture Protection | Cable Insulation | Marking & Bundling of electronic components. DRS (ZRG) Low Temperature Flame Retardant Heat Shrinkable Tube possesses excellent insulating, environmental sealing, and impact and abrasion resistance. Only a heat gun can shrink them, so they are widely and easily used.