Polyolefin Electrical Heat Shrink Assortment

This electrical heat shrink tubing assortment uses high-purity cross-linked polyolefin — selected for its balance of shrink force, flexibility and dielectric performance. It delivers a verified 2:1 radial shrink ratio, contracting cleanly and evenly to half its stated internal diameter when heated. All 560 tubes are precisely 1 13/16 inches (≈46 mm) long. The range covers 12 internal diameters: 1/24" (90 pcs), 1/16" (70 pcs), 1/12" (70 pcs), 1/10" (50 pcs), 1/8" (50 pcs), 1/7" (50 pcs), 1/6" (50 pcs), 1/5" (30 pcs), 1/4" (30 pcs), 2/7" (25 pcs), 2/5" (25 pcs), and 1/2" (20 pcs). Colour variants include yellow, blue, black, green and red — facilitating immediate visual distinction and structured documentation. Packaged in a rigid, stackable plastic box with internal compartments and engraved size identifiers. Functions include insulating exposed conductors after cutting or stripping, securing wire harnesses to reduce snagging or chafing, adding mechanical reinforcement at solder joints or crimp sleeves, preventing corrosion at termination points, and identifying wire function via colour. Its low shrink temperature threshold (starting at ~90°C) makes it compatible with affordable UK-sourced heat guns and even careful use of hair dryers for basic applications. Frequently used by UK homeowners fixing garden lights, students building robotics platforms, electricians performing minor circuit upgrades, and hobbyists restoring vintage audio gear — always within standard domestic supply voltages and non-explosive atmospheres.