3ft 3:1 marine heat shrink tubing dual wall adhesive glue lined waterproof

Seal It Right, the First Time 🔥

This 4:1 dual-wall heat shrink tubing with adhesive lining is ideal for waterproof sealing, wire protection, and heavy-duty repairs. Once heated, the inner glue layer melts and creates a rock-solid seal—perfect for marine, automotive, and outdoor use.

💡 Key Features:

• 4:1 Shrink Ratio – Shrinks to 1/4 its original size for a tight, secure fit

• Dual-Wall Construction – Outer polyolefin + inner adhesive lining

• Waterproof & Weather-Resistant – Great for harsh environments

• Strong Adhesive Seal – Bonds firmly to cables and terminals

• High-Temperature Resistance – Rated up to 125°C (257°F)

• Easy to Use – Shrinks quickly with heat gun or lighter

📦 Specifications:

• Type: Heat Shrink Tube

• Shrink Ratio: 4:1

• Material: Polyolefin outer + adhesive inner

• Color: Black (most common), mixed sizes

• Operating Temp: -55°C to 125°C

• Sizes Included: Varies (commonly 1/4", 3/8", 1/2", 3/4", 1")

• Use: Marine, auto, audio, electronics, outdoor repairs

What’s Included:

• Assorted heat shrink tubing (see photos for quantity & sizes)

• Organized in resealable bag or storage case (varies by set)

🚚 Shipping Info:

• Handling Time: 1 business day

• Weight: Approx. 1 lb

• Box Dimensions: 9” x 6” x 2”

• Ships via USPS Ground Advantage or best value option

⚠️ California Prop 65 Warning:

This product may contain chemicals known to the State of California to cause cancer or reproductive harm.

🔧 Lock in the Connection!

Stop dealing with split wires and exposed ends. Upgrade your toolkit with professional-grade heat shrink and get a grip that won’t quit 💪