{"product_id":"black-flame-retardant-heat-shrink-tubing-1-5mm-5mm-5m","title":"Black Flame Retardant Heat Shrink Tubing — 1.5mm to 5mm, 5M Roll","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"hdiy-desc\"\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003eBlack Heat Shrink Tubing — Reliable Wire Insulation for DIYers \u0026amp; Electricians\u003c\/h2\u003e\n\u003cp\u003eLoose wire splices, exposed terminals, and fraying cable ends are a safety hazard — and an eyesore. Whether you're rewiring a car stereo, repairing a lamp cord, or tidying up a control panel, you need black heat shrink tubing that grips firmly, insulates cleanly, and stays put. This flame retardant tubing is built for exactly that.\u003c\/p\u003e\n\u003cp\u003eEach roll contains 5M (≈16.4 ft) of black polyolefin heat shrink tubing with a 2:1 shrink ratio. Available in five diameters — 1.5mm (≈1\/16\"), 2mm (≈5\/64\"), 3mm (≈1\/8\"), 4mm (≈5\/32\"), and 5mm (≈3\/16\") — so you can match the right size to your wire gauge. Simply cut to length, slide over the connection, and apply heat to shrink.\u003c\/p\u003e\n\u003cp\u003eTypical use cases include automotive wire harness repair, soldered joint insulation on PCBs, cable bundling in home electrical projects, and protecting antenna or coaxial cable connections. The flame retardant rating makes it a go-to choice for any application where heat shrink tubing for electrical wiring needs to meet basic safety standards.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-compat\"\u003e\n\u003cspan class=\"hdiy-compat-icon\"\u003e🔌\u003c\/span\u003e Compatible with standard wire gauges from approximately AWG 28 down to AWG 10 across the available size range. Fits most heat guns, lighters, and soldering station hot-air attachments. Confirm your wire's outer diameter before selecting a size.\u003c\/div\u003e\n\u003ch2\u003e✅ Key Features of These Black Flame Retardant Heat Shrink Tubes\u003c\/h2\u003e\n\u003cul class=\"hdiy-features\"\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔥\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eFlame Retardant Polyolefin Material\u003c\/strong\u003e — Made from flame retardant polyolefin that resists ignition and self-extinguishes, making it suitable for heat shrink tubing for electrical wiring in automotive and home applications.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003e2:1 Shrink Ratio\u003c\/strong\u003e — Shrinks to approximately half its original inner diameter, creating a snug, uniform fit around wire splices, terminals, and connectors without gaps or bunching.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🎯\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eFive Diameter Options in One Listing\u003c\/strong\u003e — Choose from 1.5mm, 2mm, 3mm, 4mm, or 5mm to cover everything from fine signal wires to heavier gauge power cables — no need to buy multiple products.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📏\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eGenerous 5M Roll Length\u003c\/strong\u003e — Each roll provides 5M (≈16.4 ft) of tubing, giving you enough material to complete multiple repairs or a full wiring project without running short.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🌡️\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eWide Operating Temperature Range\u003c\/strong\u003e — Performs reliably from approximately -55°C to +125°C (-67°F to +257°F), suitable for engine bays, outdoor enclosures, and consumer electronics alike.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e✂️\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eEasy to Cut and Apply\u003c\/strong\u003e — Cuts cleanly with scissors or a utility knife; shrinks evenly with a heat gun, lighter, or hot-air tool. No adhesives or special tools required for standard insulation tasks.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e📐 Technical Specifications — Black Heat Shrink Tubing\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eFlame retardant polyolefin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eColor\u003c\/th\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAvailable Diameters\u003c\/th\u003e\n\u003ctd\u003e1.5mm (≈1\/16\"), 2mm (≈5\/64\"), 3mm (≈1\/8\"), 4mm (≈5\/32\"), 5mm (≈3\/16\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRoll Length\u003c\/th\u003e\n\u003ctd\u003e5M (≈16.4 ft) per roll\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShrink Ratio\u003c\/th\u003e\n\u003ctd\u003e2:1 (typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShrink Temperature\u003c\/th\u003e\n\u003ctd\u003eTypically 70–90°C (158–194°F) activation; full recovery at ~120°C (248°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOperating Temperature\u003c\/th\u003e\n\u003ctd\u003eTypically -55°C to +125°C (-67°F to +257°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFlame Rating\u003c\/th\u003e\n\u003ctd\u003eFlame retardant (see variant options for compliance details)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWall Thickness (after shrink)\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eVoltage Rating\u003c\/th\u003e\n\u003ctd\u003eContact us to confirm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStandards\u003c\/th\u003e\n\u003ctd\u003eGenerally RoHS compliant; contact us to confirm UL listing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eQuantity per Order\u003c\/th\u003e\n\u003ctd\u003e1 roll (5M)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-note\"\u003e\n\u003cspan class=\"hdiy-note-icon\"\u003e⚠️\u003c\/span\u003e Not sure which diameter fits your wire? Measure the outer diameter of your wire or connector before ordering. When in doubt, size up — a slightly larger tube will still shrink down; one that's too small won't slide on.\u003c\/div\u003e\n\u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-faq\"\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I choose the right diameter for my wires?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eMeasure the outer diameter of the wire or connector before shrinking. With a typical 2:1 shrink ratio, choose a tube whose pre-shrink inner diameter is at least 1.1–1.5× the diameter of the object you're covering. For example, a 3mm tube generally suits wires up to about 1.5mm in diameter after shrinking. When in doubt, go one size up.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat shrink ratio does this tubing use?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThis heat shrink tubing typically uses a 2:1 shrink ratio, meaning it shrinks to approximately half its original inner diameter when heat is applied evenly. This is the most common ratio for general-purpose wire insulation and cable repair.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs this tubing flame retardant and safe for electrical use?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. The tubing is made from flame retardant polyolefin material, which generally meets UL 224 and RoHS standards. It is suitable for insulating electrical connections, splices, and terminals in automotive, household, and light industrial settings. Contact us to confirm specific certification requirements for your application.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use this tubing outdoors or in wet environments?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eStandard polyolefin heat shrink tubing provides basic moisture resistance and is suitable for light outdoor use. For fully waterproof or submersible applications, we recommend adhesive-lined (dual-wall) heat shrink tubing, which creates a sealed barrier when shrunk.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat temperature is needed to shrink this tubing?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThis tubing typically begins to shrink at around 70–90°C (158–194°F) and fully recovers at approximately 120°C (248°F). A heat gun set to low or medium is recommended for even, controlled shrinking. A lighter or match can work for small sections, but may cause uneven shrinkage or scorching if held too close.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the operating temperature range after shrinking?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003ePolyolefin heat shrink tubing generally operates reliably in a range of approximately -55°C to +125°C (-67°F to +257°F). This makes it suitable for most automotive engine bay wiring, outdoor electrical enclosures, and consumer electronics repair.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I cut the tubing to a custom length?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. Each roll is 5M (≈16.4 ft) long and can be cut to any length with scissors or a utility knife before applying heat. Cut slightly longer than needed — the tubing does not shrink significantly in length, but a small overlap on each end ensures full coverage of the joint.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your size and length above, then add to cart — ships from our US warehouse.\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HomeDIYer","offers":[{"title":"5mm \/ 5M","offer_id":52329998811410,"sku":"KFCBJT00994x1","price":11.0,"currency_code":"USD","in_stock":true},{"title":"3mm \/ 5M","offer_id":52329998844178,"sku":"KFCBJT00995x1","price":7.48,"currency_code":"USD","in_stock":true},{"title":"2mm \/ 5M","offer_id":52329998876946,"sku":"KFCBJT00996x1","price":7.48,"currency_code":"USD","in_stock":true},{"title":"4mm \/ 5M","offer_id":52329998909714,"sku":"KFCBJT00997x1","price":9.21,"currency_code":"USD","in_stock":true},{"title":"1.5mm \/ 5M","offer_id":52329998942482,"sku":"KFCBJT00998x1","price":7.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture1of3_9faa49ef-774e-4524-b3ec-56c190c1fc27.jpg?v=1780650400","url":"https:\/\/homediyer.com\/products\/black-flame-retardant-heat-shrink-tubing-1-5mm-5mm-5m","provider":"HomeDIYer","version":"1.0","type":"link"}