Dual Wall Heat Shrink Tubing Kit | 12mm-25mm Red & Black Assorted (20 Pack)

This comprehensive heat shrink tubing kit provides a versatile and professional solution for insulating, protecting, and organizing electrical connections. The pack includes 20 total tubes, each 30cm long, across five essential sizes (12mm, 14mm, 16mm, 20mm, 25mm) in both red and black, offering the perfect size and color for a wide range of projects.

Kit Contents & Specifications:

• Total Pieces: 20 tubes (each 30cm / ~12 inches long)

• Size & Color Breakdown (2 tubes of each color per size):

  • 12mm – 2 Black, 2 Red

  • 14mm – 2 Black, 2 Red

  • 16mm – 2 Black, 2 Red

  • 20mm – 2 Black, 2 Red

  • 25mm – 2 Black, 2 Red

• Material: Polyolefin (or equivalent) – Provides excellent insulation, abrasion resistance, and environmental sealing when heated.

• Shrink Ratio: Standard 2:1 (shrinks to approximately half its supplied diameter when heated).

Core Features & Benefits:

• Complete Size Range: Covers small to large applications, from individual wire splices (12mm) to large cable bundles, battery terminals, or hydraulic hoses (25mm).

• Color Coding: Use red and black for polarity identification (positive/negative), circuit organization, or simply to match your project's aesthetics.

• Professional Protection: Creates a durable, sealed, and strain-relieved barrier around connections, protecting against moisture, dust, abrasion, and short circuits.

• Versatile & Essential: A must-have for electrical work, automotive repairs, marine applications, DIY electronics, and general-purpose cable management.

Common Applications:

• Automotive & Marine Wiring: Sealing battery terminals, insulating crimp connectors, and protecting wiring harnesses.

• Electrical Repairs & Prototyping: Insulating soldered wire joints, creating custom cable ends, and bundling wires.

• Industrial & Equipment Maintenance: Weatherproofing connectors, repairing tool cables, and reinforcing hydraulic/pneumatic hose fittings.

How to Use: Simply slide the appropriate size tube over the connection or area to be protected. Apply heat evenly using a heat gun, lighter (with caution), or specialized tool until the tube shrinks tightly and forms a secure seal.

Every order at TINKR promises fast shipping to your door, anywhere in New Zealand. Within 1-3 business days. Courier pickups Monday - Friday. Excluding public holidays.

Our standard delivery requires a signature upon receipt, however type any delivery instructions in the box provided during the TINKR check out on how you want your order delivered. For example, No signature required or leave on front porch etc.

While it is possible for many Auckland orders to be delivered the same day, delivery estimates are; North Island - Overnight. South Island and Rural - extra 1-2 days