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Ancor 306503 Marine Grade Adhesive Lined Heat Shrink Tubing Kit 3/4-Inch 4-Pack

Manufacturer

Ancor

<h3>Ancor: The Standard in Marine Grade® Electrical Wiring</h3><p>When it comes to marine electrical systems, few names carry as much weight as Ancor. For over four decades, Ancor has held its position as the originator and market leader of <strong>Marine Grade®</strong> wire and wire management solutions. What sets Ancor apart is not just longevity — it is a relentless commitment to engineering products specifically for the harshest environments on earth: saltwater, intense UV exposure, engine-bay vibration, and extreme temperature swings that would destroy ordinary electrical wire.</p><p><a href="/7231-ancor-wire-cable-201198">Ancor wire and cable</a> forms the backbone of countless boat electrical systems, and for good reason. Every conductor is built from tinned copper stranding, a critical distinction from standard bare copper wire. Tinning each individual strand electroplates it with a protective layer that guards against the corrosion and electrolysis that can silently wick through unprotected wire and cause total system failure. The proprietary premium vinyl insulation stays flexible even in extreme cold down to -40°F, while simultaneously resisting saltwater, battery acid, oil, gasoline, and ultraviolet radiation.</p><p>Ancor products are manufactured to precise specifications and designed to meet UL, ABYC, NMMA, and USCG standards — and in many cases exceed them. This industry involvement means that when you wire a boat with Ancor, you are building to a standard recognized by the U.S. Coast Guard, the American Boat and Yacht Council, and the National Marine Manufacturers Association.</p><p>The Ancor catalog spans a comprehensive range of marine electrical needs. Their <a href="/7231-ancor-primary-wire-10128">primary wire</a> is available across a full spectrum of gauges and in every color recommended by ABYC standards, making circuit identification straightforward and code-compliant. For high-current applications like engine starting and battery banks, Ancor's <a href="/7231-ancor-battery-cable-2500">battery cable</a> uses ultra-flexible Type 3 stranding that makes routing heavy-gauge conductors through tight bilge spaces far more manageable. Completing the connection, Ancor's <a href="/7231-ancor-battery-lugs-200145">battery lugs</a> are manufactured from 100% heavy-duty annealed tinned copper to maximize current flow while resisting the corrosive marine atmosphere at every terminal point.</p><p>Beyond conductors, Ancor's product ecosystem includes terminals, connectors, heat shrink tubing, cable ties, and professional installation tools — all engineered to work together as a unified system. Whether you are rewiring a center console from scratch or making targeted repairs to an aging offshore cruiser, Ancor provides the components to do the job right the first time.</p><h3>Why Ancor Is the Go-To Brand for Marine Electricians</h3><ul style="list-style:disc"><li><strong>Tinned Copper Construction:</strong> Every strand is individually electroplated to fight corrosion and electrolysis at the conductor level.</li><li><strong>Proprietary Insulation:</strong> UV, saltwater, acid, oil, and abrasion resistance rated at 600 volts and 221°F dry / 167°F wet.</li><li><strong>Standards Compliance:</strong> Meets and exceeds UL 1426, ABYC, NMMA, and USCG (CFR Title 46) requirements.</li><li><strong>Complete System Approach:</strong> Wire, cable, terminals, connectors, lugs, and tools all designed for compatibility.</li><li><strong>ABYC Color Coding:</strong> Full range of color options ensures proper circuit identification per industry standards.</li></ul><p>From weekend fishing boats to long-range bluewater cruisers, Ancor's Marine Grade® product line delivers the reliability that on-the-water safety demands. Explore the categories below to find the right Ancor solution for your next electrical project.</p>

Part Number

306503
09/16/2036 8:17 AM
Sale Price

$13.52

In Stock (5)

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Usually delivered within 2 days

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Product Details

The Ancor 306503 Marine Grade Heat Shrink Tubing Kit provides professional-grade wire protection and sealing for marine electrical applications. This 4-piece assortment includes 3-inch sections of 3/4-inch diameter heat shrink tubing in yellow, white, black, and green colors for easy circuit identification.

Key Features:

  • Cross-linked polyolefin construction - significantly stronger than PVC and will not burn like PVC tubing
  • Heat-activated adhesive lining creates an impervious seal against salt water, oil, acids, and sunlight
  • Superior 3:1 shrink ratio - shrinks to 1/3 of original size for tight, secure fit
  • Provides excellent strain relief at wire terminations and connections
  • Activates at 257°F (125°C) for reliable shrinking
  • Wide operating temperature range: -40°C to 110°C (-40°F to 230°F)
  • UL 224 certified for marine electrical applications
  • Color-coded assortment for easy wire identification and organization

Ideal for protecting and sealing marine wire connections, terminal ends, and splices where moisture resistance is critical. The adhesive lining melts and flows during heating to completely encapsulate the connection, providing superior environmental protection compared to standard heat shrink tubing.

Products specifications

American Wire Gauge (AWG)

#8-2/0

Color

Yellow, White, Black, Green

Diameter

3/4"

Material

Adhesive Lined PVC Tubing

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