{"product_id":"6-5mm-heat-shrink-tubing-2-1-black-electrical-wire-sleeve-cable-wrap","title":"6.5mm Heat Shrink Tubing 2:1 – Black Electrical Wire Sleeve \u0026 Cable Wrap","description":"\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What length of heat shrink tubing do I need?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Measure the total length of wire or cable you need to cover, then add 10–15% extra for overlap and trimming. For single repairs, 1m or 5m is typically sufficient. For wiring harnesses or larger projects, 10m–50m rolls are generally more economical. 1 meter ≈ 3.28 feet.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What does 2:1 shrink ratio mean?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"A 2:1 shrink ratio means the tubing shrinks to approximately half its original diameter when heat is applied. This 6.5mm tubing will shrink down to roughly 3.25mm (≈1\/8\\\"), making it suitable for wires and cables in that diameter range.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What wire or cable diameter does 6.5mm heat shrink tubing fit?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"This tubing is designed to slide over cables or wire bundles up to approximately 6.5mm (≈1\/4\\\") in diameter before shrinking. After shrinking, it typically fits snugly around cables in the 3–5mm range. Always verify your cable's outer diameter before ordering.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can this heat shrink tubing be used outdoors?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Standard polyolefin heat shrink tubing generally provides basic moisture resistance once fully shrunk, making it suitable for light outdoor or under-hood use. For prolonged outdoor or marine exposure, adhesive-lined (dual-wall) tubing is generally recommended for a waterproof seal.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What temperature is needed to shrink this tubing?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Polyolefin heat shrink tubing typically activates at around 90°C (194°F) and fully shrinks at approximately 120°C (248°F). A heat gun is the recommended tool. Avoid open flames, which can scorch or unevenly shrink the tubing.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is this tubing RoHS compliant and safe for electrical use?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"This heat shrink tubing is made from polyolefin material, which is generally RoHS-compliant and flame-retardant. It is suitable for standard electrical insulation, wire bundling, and strain relief applications. Contact us to confirm specific compliance certifications for your project.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I use scissors or a knife to cut the tubing to length?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. Polyolefin heat shrink tubing cuts cleanly with sharp scissors or a utility knife before shrinking. For clean cuts after shrinking, a sharp blade or wire cutters work well. Cut slightly longer than needed — you can always trim after shrinking.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\n\u003cdiv class=\"hdiy-desc\"\u003e\n\n  \u003cdiv class=\"hdiy-overview\"\u003e\n    \u003ch2\u003e6.5mm Heat Shrink Tubing 2:1 — Reliable Electrical Insulation for Every Wire Job\u003c\/h2\u003e\n    \u003cp\u003eWhether you're chasing down a wiring fault in your vehicle, tidying up a home electrical panel, or protecting exposed connections on a DIY electronics build, bare or poorly insulated wires are a safety hazard you can't ignore. This 6.5mm heat shrink tubing gives hobbyists, auto technicians, and electricians a fast, clean way to insulate, protect, and organize cables without tape that unravels or connectors that corrode.\u003c\/p\u003e\n    \u003cp\u003eEach roll is black polyolefin heat shrink tubing with a 2:1 shrink ratio — meaning it shrinks to approximately half its original diameter (from 6.5mm \/ ≈¼\" down to roughly 3.25mm \/ ≈⅛\") when heat is applied. Available in lengths from 1 meter (≈3.3 ft) up to 100 meters (≈328 ft), so you can grab exactly what your project calls for. The tubing slides easily over wire ends and cable bundles before shrinking, then conforms tightly for a secure, professional finish.\u003c\/p\u003e\n    \u003cp\u003eIdeal for automotive wiring harness repair, marine cable protection, home electrical projects, and DIY electronics — anywhere you need a durable, flame-retardant sleeve that keeps connections safe and organized. The 6.5mm heat shrink tubing is also widely used for strain relief on power cords and for color-coding or labeling wire bundles in control panels.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-compat\"\u003e\n    \u003cspan class=\"hdiy-compat-icon\"\u003e🔌\u003c\/span\u003e\n    \u003cstrong\u003eCompatibility:\u003c\/strong\u003e Fits cables and wire bundles up to approximately 6.5mm (≈¼\") outer diameter. After shrinking, snugly covers cables typically in the 3–5mm range. Verify your cable OD before ordering.\n  \u003c\/div\u003e\n\n  \u003ch2\u003e✅ Key Features of These 6.5mm Heat Shrink Tubing Sleeves\u003c\/h2\u003e\n  \u003cul class=\"hdiy-features\"\u003e\n    \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔥\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003e2:1 Shrink Ratio\u003c\/strong\u003e — Shrinks from 6.5mm (≈¼\") to approximately 3.25mm (≈⅛\"), creating a tight, conforming sleeve around wire splices, terminals, and cable ends.\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚡\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eElectrical Insulation\u003c\/strong\u003e — Polyolefin material provides reliable dielectric insulation for wire repair, connector protection, and exposed terminal coverage in automotive and household wiring.\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🛡️\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eFlame-Retardant Construction\u003c\/strong\u003e — Meets general flame-retardant standards for electrical sleeve applications, reducing risk in enclosed wiring environments such as junction boxes and engine bays.\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 before shrinking; apply evenly with a heat gun for a smooth, wrinkle-free finish on cable wrap and wire bundling jobs.\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📏\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eMultiple Length Options\u003c\/strong\u003e — Available from 1m to 100m rolls so you can match the quantity to your project — from a single automotive wire repair to a full wiring harness installation.\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 — Polyolefin heat shrink tubing generally withstands continuous operating temperatures from approximately -55°C to +125°C (−67°F to +257°F), suitable for under-hood and industrial environments.\u003c\/span\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003e📐 Technical Specifications — 6.5mm Heat Shrink Tubing\u003c\/h2\u003e\n  \u003cdiv class=\"hdiy-table-wrap\"\u003e\n    \u003ctable\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003cth\u003eProduct Type\u003c\/th\u003e\n\u003ctd\u003eHeat Shrink Tubing \/ Electrical Wire Sleeve\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003ePolyolefin (flame-retardant)\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\u003eInner Diameter (Before Shrink)\u003c\/th\u003e\n\u003ctd\u003e6.5mm (≈¼\")\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eInner Diameter (After Shrink)\u003c\/th\u003e\n\u003ctd\u003eApproximately 3.25mm (≈⅛\")\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eShrink Ratio\u003c\/th\u003e\n\u003ctd\u003e2:1\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eShrink Temperature\u003c\/th\u003e\n\u003ctd\u003eTypically 90–120°C (194–248°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eOperating Temperature\u003c\/th\u003e\n\u003ctd\u003eGenerally −55°C to +125°C (−67°F to +257°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eAvailable Lengths\u003c\/th\u003e\n\u003ctd\u003e1m, 5m, 10m, 20m, 30m, 50m, 100m\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\u003eCompliance\u003c\/th\u003e\n\u003ctd\u003eContact us to confirm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-note\"\u003e\n    \u003cspan class=\"hdiy-note-icon\"\u003e⚠️\u003c\/span\u003e\n    \u003cstrong\u003eNote:\u003c\/strong\u003e Specifications such as wall thickness and voltage rating may vary by production batch. Contact us to confirm exact values for critical electrical applications.\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-faq\"\u003e\n    \u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat length of heat shrink tubing do I need?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eMeasure the total length of wire or cable you need to cover, then add 10–15% extra for overlap and trimming. For single repairs, 1m (≈3.3 ft) or 5m (≈16.4 ft) is typically sufficient. For wiring harnesses or larger projects, 10m–50m rolls are generally more economical. Use the formula: \u003cem\u003etotal coverage needed × 1.15 = recommended roll length\u003c\/em\u003e.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat does 2:1 shrink ratio mean?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eA 2:1 shrink ratio means the tubing shrinks to approximately half its original inner diameter when heat is applied. This 6.5mm tubing will typically shrink down to roughly 3.25mm (≈⅛\"), forming a tight sleeve around your wire or cable. Always ensure your cable's outer diameter is smaller than 6.5mm so the tubing slides on before shrinking.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat wire or cable diameter does 6.5mm heat shrink tubing fit?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eThis tubing is designed to slide over cables or wire bundles up to approximately 6.5mm (≈¼\") in outer diameter before shrinking. After shrinking, it typically fits snugly around cables in the 3–5mm range. Always measure your cable's outer diameter before ordering to ensure a proper fit.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eCan this heat shrink tubing be used outdoors or in wet environments?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eStandard polyolefin heat shrink tubing generally provides basic moisture resistance once fully shrunk, making it suitable for light outdoor or under-hood use. For prolonged outdoor, marine, or fully waterproof applications, adhesive-lined (dual-wall) heat shrink tubing is generally recommended, as it creates a sealed barrier against moisture ingress.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat tool do I use to shrink the tubing, and what temperature is needed?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eA heat gun is the recommended tool for shrinking polyolefin tubing. Activation typically begins around 90°C (194°F), with full shrinkage occurring at approximately 120°C (248°F). Move the heat gun evenly along the tubing to avoid hot spots. Avoid open flames — they can scorch or unevenly shrink the sleeve, compromising insulation quality.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eIs this tubing safe for automotive and electrical wiring applications?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eYes. Polyolefin heat shrink tubing is widely used in automotive wiring harness repair, home electrical projects, and DIY electronics. It is generally flame-retardant and provides reliable electrical insulation for standard low-voltage wire splices, terminal covers, and cable strain relief. For high-voltage or safety-critical applications, contact us to confirm specific ratings.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow do I cut the tubing to the right length?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eCut the tubing with sharp scissors or a utility knife before applying heat — it cuts cleanly and easily. Cut pieces slightly longer than needed (add about 5mm \/ ≈3\/16\" on each end) to allow for any shrinkage along the length. After shrinking, trim any excess with scissors or a sharp blade for a neat finish.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-cta\"\u003e\n    🛒 Select your \u003cstrong\u003ecolor and length\u003c\/strong\u003e above, then add to cart — ships from our US warehouse.\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"HomeDIYer","offers":[{"title":"Black \/ 1 Meter","offer_id":52330938368274,"sku":"GLFBFHHGLBZSJ000092x1","price":6.24,"currency_code":"USD","in_stock":true},{"title":"Black \/ 5 Meter","offer_id":52330938401042,"sku":"GLFBFHHGLBZSJ000092x5","price":9.07,"currency_code":"USD","in_stock":true},{"title":"Black \/ 10 Meter","offer_id":52330938433810,"sku":"GLFBFHHGLBZSJ000092x10","price":16.03,"currency_code":"USD","in_stock":true},{"title":"Black \/ 20 Meter","offer_id":52330938466578,"sku":"GLFBFHHGLBZSJ000092x20","price":29.96,"currency_code":"USD","in_stock":true},{"title":"Black \/ 30 Meter","offer_id":52330938499346,"sku":"GLFBFHHGLBZSJ000092x30","price":43.89,"currency_code":"USD","in_stock":true},{"title":"Black \/ 50 Meter","offer_id":52330938532114,"sku":"GLFBFHHGLBZSJ000092x50","price":79.76,"currency_code":"USD","in_stock":true},{"title":"Black \/ 100 Meter","offer_id":52330938564882,"sku":"GLFBFHHGLBZSJ000092x100","price":157.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Main-02_b396c63c-eb27-4d0e-8928-2841c56961d1.jpg?v=1780984622","url":"https:\/\/homediyer.com\/products\/6-5mm-heat-shrink-tubing-2-1-black-electrical-wire-sleeve-cable-wrap","provider":"HomeDIYer","version":"1.0","type":"link"}