Heat shrink end caps for electrical, industrial and automotive applications

Heat-shrinkable end caps are specialised components used to seal the ends of cables, wires, or tubes. Made from heat-sensitive material, these caps shrink when exposed to heat, forming a tight, protective seal around the object they cover. Wire end caps are widely used in electrical, automotive, marine and industrial applications to prevent moisture ingress, protect against dust, chemicals, and corrosion, provide mechanical strain relief, and insulate live cable ends.

HellermannTyton offers heat shrink end caps for sealing and insulating cable ends in low-voltage applications. These plastic end caps are made from polyolefin and often come with a thermoplastic adhesive lining that melts during heat application, ensuring a watertight and secure seal. Many of our variants allow for printing on the surface, making the heat shrink tube end caps ideal for identification and labelling purposes.

The Helashrink 1600 plastic end cap series from HellermannTyton is engineered to provide reliable sealing and insulation for low-voltage cable applications. Their robust design and adhesive lining ensure a secure environmental seal, making them suitable for a wide range of cable types (including polymeric, paper-insulated, and lead-jacketed cables). Whether the cables are aluminium or steel-armoured, low voltage wire end caps and blind end caps deliver dependable insulation.

Pinched end caps are pieces of heat shrink tubing shrunk onto a filler to create an end cap. They are designed to seal and protect wire ends, such as stub splices. These wiring end caps in the PEC series are made from cross-linked polyolefin and feature a thermoplastic adhesive lining that ensures a secure, moisture-resistant seal.

HellermannTyton offers four models of pinched wire end caps, each with a 3:1 shrink ratio, allowing for a tight fit over a wide range of wire diameters. These heat shrink end caps are thin-walled, which helps reduce weight as well as installation time, while maintaining excellent mechanical and electrical properties. 

HellermannTyton’s end caps in the 1600 series stand out for their ability to be professionally printed with repetitive markings. The printing is offered as part of our service - combining robust insulation with clear, consistent identification. This feature is particularly valuable in industrial settings where traceability, safety, and compliance are critical. The outer surface of the heat-shrinkable end caps is optimised for thermal transfer printing, enabling clear, durable labelling that withstands exposure to chemical, abrasion, and temperature fluctuations. Monochrome logos, barcodes, QR codes, data matrix, and free text — including incrementation — can be printed on 1600-series heat-shrinkable end caps.