Nice product at great price
Was wiring my car and had quite a few smaller wires to crimp and cover. This worked great — shrinks clean and consistent every time.
Church's · Verified Purchase★ Verified
Helixal — Professional Heat Shrink Tubing
Helixal — Professional Heat Shrink Tubing
5/8 inch heat shrink tubing fits 1/0 and 2/0 AWG wire — the gauge used for large cable bundles, audio amplifier main power feeds, RV shore power connections, and LiFePO4 battery bank main cables. ABYC E-11 Table XI rates 1/0 AWG at 125A and 2/0 AWG at 150A in a standard marine installation; cables at these current levels are typically the highest-value conductors in a vehicle or vessel and require durable insulation protection at every termination. At 16mm expanded diameter, this tube slides freely over 1/0 and 2/0 AWG conductors and recovers to approximately 8.0mm. The 2:1 single-wall construction, qualified to UL 224, is the right choice for large cable organization and identification in dry bays and enclosures where bundling and mechanical protection are the main goal. For shore power connections and any cable exposed to weather or bilge moisture, the 3:1 dual-wall adhesive version provides the watertight protection this cable size demands. The 90ft roll is a practical bulk quantity for audio installers, RV technicians, and marine fabricators completing full builds.
Click any size to navigate · 90 ft per roll
SKU: B0FJH4BN1Y · 5/8" (16mm) · 90 ft
High-volume UL listed polyolefin at an honest per-foot cost. The industry standard for color coding, bundling, and dry indoor electrical insulation.
Choose a size where the expanded diameter is 20–30% larger than your wire or bundle. Smaller tubes will slide on easier; slightly oversize is better than too tight.
Cut to length and thread onto the wire before making the splice. The tubing cannot pass over a crimped terminal — position it first, then complete the connection.
Use a heat gun at 90°C or higher for initial shrink, 120°C for full recovery. Work from the center outward. Avoid open flame — it scorches the tubing and creates uneven shrink.
Finished tubing should be tight with no bubbles or lifted edges. No adhesive will appear at the ends — this is single-wall tubing. Confirm even recovery across the full length.
Actual 5/8" tube at full expanded diameter (16mm) and after heat recovery. Use this as your fit reference before cutting.
Consolidates large wire bundles in audio systems, industrial panels, and equipment racks — providing clean mechanical protection and color identification.
Insulates large wire terminations in dry indoor environments such as panel boards, UPS systems, and large inverter installations.
Used on subwoofer feeds, amplifier power wiring, and AV distribution cables in home theater and commercial audio installations.
Provides strain relief and color identification for large wire harnesses at the entry and exit points of industrial control panels.
Covers large battery cable connections and bus bar leads on UPS systems and battery backup installations in data centers and facilities.
Provides a clean protective sleeve at conduit entry and exit points where cables transition between raceways and panels indoors.
Nice product at great price
Was wiring my car and had quite a few smaller wires to crimp and cover. This worked great — shrinks clean and consistent every time.
Perfect for bulk workshop use
Bought this for my automotive workshop and the 120ft roll is exactly what I needed. Shrinks consistently and cleanly every time. Much better value than small packs.
Professional finish every time
Clean black finish, no bubbles or wrinkles when applied correctly. UL listing is important for commercial electrical work — ticks that box too.
Recovered diameter is approx. 1/2 of the expanded size shown · All sizes ship to USA & Canada