Heat Shrink Tubing Information

We offer a line of 3:1 Dual Wall Adhesive Lined Heat Shrink Tubing along with an expanding selection of 4:1 Heat Shrink.


We currently offer 1/8, 3/16, 1/4, 5/16, 3/8, 1/2 and 3/4 inch sizes in black & red in 3:1 shrink ratio. Our inventory will be expanding to include additional sizes, colors, and styles in the future. We offer 6-inch sections in bags of 25, 50 & 100 along with bulk rolls.

Our heat shrink tubing is provided by a high-quality manufacturer that meets many international quality standards and supplies several automotive OEM with the electrical covering products used on modern vehicles. 
Providing a high-quality solution for electrical wiring repairs and installation in cars, trucks, SUVs, boats, RVs and other automotive and marine applications where a water tight seal is required. Help prevent corrosion from critical electronic wiring, providing a quality repair back to like OEM condition. Our dual-wall adhesive-lined marine grade 3:1 heat shrink tubing will provide a waterproof seal and get the job done right!
For automotive electrical repair, we recommend pairing our heat shrink with Non-Insulated "Naked" electrical terminals. By soldering in the electrical connector and sealing the connection with heat shrink you can provide a "like OEM" repair that will hold up against corrosion and other contamination.
  • Working temperature range from -49°F to 247°F (-45°C / +125°C)
  • Shrinking begins at 158°F and is fully shrunk by 230°F (70°C / 110°C)
  • Flame Retardant Exterior
  • Adhesive Lining provides superior protection from water and other contaminants 
  • Inner Adhesive also acts as a flame extinguisher when exposed
  • Oil, Chemical, and Solvent Resistant 
  • Designed for Automotive, Aircraft, Boats, Recreational Vehicles, Electrical and Industrial Fields

Trust Buy Auto Supply as your bulk wholesale supplier of Heat Shrink Tubing and other automotive repair commodities including AC Valve Cores, Oil Drain Plug Gaskets, Clips & fasteners, Blade Fuses, Electrical Terminals and more!