This 1-1/2" dual-wall heat shrink tubing features a 3:1 shrink ratio, shrinking to one-third its original diameter to fit wire gauges from 4/0 AWG to 350 kcmil. Made of polyolefin with an adhesive lining, it provides waterproof insulation rated for -45°C to 125°C and activates at 100°C.
• Diameter: 1-1/2" (before shrinking)
• Wire Gauge Range: 4/0 AWG - 350 kcmil (approximate coverage after shrinking)
• Shrink Ratio: 3:1 (shrinks to 1/3 original diameter)
• Material: Dual-wall polyolefin with adhesive lining
• Temperature Rating: -45°C to 125°C (-49°F to 257°F)
• Activation Temperature: 100°C (212°F)
• Waterproof: Yes
• Marine Wire Splicing & Connections - Seal wire splices, terminal connections, and cable joints in boats where saltwater exposure requires waterproof protection that prevents corrosion and electrical failure.
• Outdoor Electrical Installations - Protect wire connections in landscape lighting, outdoor outlets, and weatherproof junction boxes where rain, snow, and UV exposure demand durable, waterproof insulation.
• Automotive & Trailer Wiring - Insulate battery cable connections, wire splices, and terminal ends in vehicles and trailers where road spray, moisture, and vibration require sealed protection against corrosion.
• Underground Cable Protection - Seal direct burial splices, well pump connections, and irrigation system wiring where moisture, soil chemicals, and pressure require permanent waterproof barriers.
UL Listed
CSA Certified
Meets Mil-Spec 23053/4 standards
Free Shipping on orders $50+
Orders placed before 3pm PST ship same day
30-day no-hassle return
Buyer may be liable for return shipping charges
You may also like
Need More Parts for Your Project?
Explore our full catalog of professional-grade electrical supplies
