{"product_id":"white-heat-shrink-tubing-2-1-ratio-13-80mm","title":"White Heat Shrink Tubing 2:1 Ratio — Φ13–80mm, Multiple Lengths","description":"\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I choose the right diameter for my wire or cable?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Measure the outer diameter of the cable or bundle you need to cover, then select a heat shrink size that is generally 20–30% larger than that measurement before shrinking. For example, if your cable is 10mm in diameter, a 13mm (1\/2\\u201d) tube will typically provide a snug fit after shrinking. The 2:1 shrink ratio means the tubing will shrink to approximately half its listed diameter.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What shrink temperature is required?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Polyolefin 2:1 heat shrink tubing generally begins to shrink at around 70\\u00b0C (158\\u00b0F) and achieves full shrinkage at approximately 120\\u00b0C (248\\u00b0F). A heat gun is the recommended tool; an open flame can be used carefully but may cause uneven shrinkage or scorching.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is this heat shrink tubing suitable for outdoor use?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Standard polyolefin heat shrink tubing provides basic moisture resistance and is generally suitable for light outdoor applications. For prolonged UV exposure or submersion, an adhesive-lined or dual-wall variant is typically recommended for a fully waterproof seal.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is the voltage rating of this tubing?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Polyolefin 2:1 heat shrink tubing is generally rated for up to 600V in standard electrical applications. For high-voltage or industrial environments, please contact us to confirm suitability for your specific use case.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is this tubing flame-retardant?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes, this tubing is made from flame-retardant polyolefin material, which means it will self-extinguish when the heat source is removed. It meets the requirements of most standard electrical safety applications.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I use this for bundling multiple wires together?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Absolutely. The larger diameter options (35mm–80mm) are well-suited for bundling and sleeving wire harnesses, cable looms, or grouped conduit runs. Measure the total outer diameter of the bundle and select a size approximately 20–30% larger for a clean, secure fit.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I cut the tubing to length?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Standard scissors or a utility knife work well for cutting polyolefin heat shrink tubing before shrinking. For clean, straight cuts on larger diameters, a sharp pair of shears or a rotary cutter is recommended. Always cut before applying heat.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\n\u003cdiv class=\"hdiy-desc\"\u003e\n\n  \u003cdiv class=\"hdiy-overview\"\u003e\n    \u003ch2\u003eWhite Heat Shrink Tubing 2:1 — Clean, Reliable Wire Insulation from 13mm to 80mm\u003c\/h2\u003e\n    \u003cp\u003eWhether you're rewiring a trailer harness, repairing automotive cables, or tidying up a home electrical panel, finding the right white heat shrink tubing in the exact diameter you need can be frustrating. This product is designed for DIYers, electricians, and hobbyists who need a dependable, flame-retardant sleeve that delivers a clean white finish across a wide range of cable sizes.\u003c\/p\u003e\n    \u003cp\u003eEach piece is cut from flame-retardant polyolefin tubing with a \u003cstrong\u003e2:1 shrink ratio\u003c\/strong\u003e, meaning it shrinks to approximately half its listed diameter when heat is applied. Diameters range from \u003cstrong\u003e13mm (≈1\/2\")\u003c\/strong\u003e to \u003cstrong\u003e80mm (≈3-1\/8\")\u003c\/strong\u003e, and lengths are available from \u003cstrong\u003e0.1M (≈4\")\u003c\/strong\u003e up to \u003cstrong\u003e5M (≈196\")\u003c\/strong\u003e — so you only buy what you need. The white color makes it easy to label with a marker or match white-finished enclosures and conduit.\u003c\/p\u003e\n    \u003cp\u003eTypical applications include automotive wire harness sleeving, marine cable protection, electrical panel wire management, and DIY electronics repair. The larger diameter options (35mm–80mm) are especially useful for bundling multi-wire looms and cable management in workshops or equipment bays.\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 Suitable for copper, aluminum, and stranded wire. Works with standard heat guns (typically 120°C \/ 248°F for full shrink). Compatible with most automotive, marine, and general electrical wiring applications up to generally 600V.\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-note\"\u003e\n    \u003cspan class=\"hdiy-note-icon\"\u003e⚠️\u003c\/span\u003e\n    \u003cstrong\u003eSize tip:\u003c\/strong\u003e Select a diameter 20–30% larger than your cable's outer diameter before shrinking. If you're unsure, contact us to confirm the right fit for your application.\n  \u003c\/div\u003e\n\n  \u003ch2\u003e✅ Key Features of These White 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\u003e2:1 Shrink Ratio\u003c\/strong\u003e — Shrinks to approximately half its listed diameter, creating a firm, uniform sleeve around wire insulation and cable bundles of varying sizes.\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🛡️\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eFlame-Retardant Polyolefin\u003c\/strong\u003e — Self-extinguishing material meets standard electrical safety requirements, making it suitable for automotive wiring, panel work, and enclosed installations.\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📏\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eWide Diameter Range (13–80mm)\u003c\/strong\u003e — Covers everything from individual wire terminals at 13mm (≈1\/2\") to large cable loom sleeving at 80mm (≈3-1\/8\"), reducing the need to stock multiple product lines.\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e✂️\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eCut-to-Length Flexibility\u003c\/strong\u003e — Available in lengths from 0.1M to 5M so you can order exactly what your project requires without waste — ideal for both spot repairs and full harness builds.\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🎨\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eClean White Finish\u003c\/strong\u003e — The white color is easy to write on with a permanent marker for wire labeling, and blends naturally with white conduit, enclosures, and appliance wiring.\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e💧\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eMoisture \u0026amp; Abrasion Resistance\u003c\/strong\u003e — Polyolefin construction provides a protective barrier against moisture ingress and light abrasion, extending the service life of wire insulation in demanding environments.\u003c\/span\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003e📐 Technical Specifications — White Polyolefin 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\u003eWhite\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\u003eDiameter Options\u003c\/th\u003e\n\u003ctd\u003e13mm (≈1\/2\"), 14mm, 15mm, 16mm, 18mm, 20mm, 22mm, 25mm (≈1\"), 28mm, 30mm, 35mm, 40mm, 45mm, 50mm (≈2\"), 60mm, 70mm, 80mm (≈3-1\/8\")\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eLength Options\u003c\/th\u003e\n\u003ctd\u003e0.1M (≈4\"), 0.2M (≈8\"), 0.5M (≈20\"), 1M (≈39\"), 3M (≈118\"), 5M (≈196\")\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eShrink Temperature\u003c\/th\u003e\n\u003ctd\u003eTypically 120°C (248°F) for full shrink\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eVoltage Rating\u003c\/th\u003e\n\u003ctd\u003eGenerally up to 600V (standard electrical use)\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\u003eOperating Temperature Range\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\u003eFlame Retardancy\u003c\/th\u003e\n\u003ctd\u003eSelf-extinguishing (UL 224 equivalent standard)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eSuitable Applications\u003c\/th\u003e\n\u003ctd\u003eAutomotive, marine, electrical, DIY electronics, cable management\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eCountry of Origin\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  \u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n  \u003cdiv class=\"hdiy-faq\"\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow do I choose the right diameter for my wire or cable?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eMeasure the outer diameter of the cable or bundle you need to cover, then select a heat shrink size that is generally 20–30% larger than that measurement before shrinking. For example, if your cable is 10mm in diameter, a 13mm (≈1\/2\") tube will typically provide a snug fit after shrinking. The 2:1 shrink ratio means the tubing will shrink to approximately half its listed diameter.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat shrink temperature is required?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003ePolyolefin 2:1 heat shrink tubing generally begins to shrink at around 70°C (158°F) and achieves full shrinkage at approximately 120°C (248°F). A heat gun is the recommended tool; an open flame can be used carefully but may cause uneven shrinkage or scorching.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eIs this heat shrink tubing suitable for outdoor use?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eStandard polyolefin heat shrink tubing provides basic moisture resistance and is generally suitable for light outdoor applications. For prolonged UV exposure or submersion, an adhesive-lined or dual-wall variant is typically recommended for a fully waterproof seal.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat is the voltage rating of this tubing?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003ePolyolefin 2:1 heat shrink tubing is generally rated for up to 600V in standard electrical applications. For high-voltage or industrial environments, please contact us to confirm suitability for your specific use case.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eIs this tubing flame-retardant?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eYes, this tubing is made from flame-retardant polyolefin material, which means it will self-extinguish when the heat source is removed. It meets the requirements of most standard electrical safety applications.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eCan I use this for bundling multiple wires together?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eAbsolutely. The larger diameter options (35mm–80mm) are well-suited for bundling and sleeving wire harnesses, cable looms, or grouped conduit runs. Measure the total outer diameter of the bundle and select a size approximately 20–30% larger for a clean, secure fit.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow do I cut the tubing to length?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eStandard scissors or a utility knife work well for cutting polyolefin heat shrink tubing before shrinking. For clean, straight cuts on larger diameters, a sharp pair of shears or a rotary cutter is recommended. Always cut before applying heat.\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\u003ediameter 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":"13mm \/ 0.5M","offer_id":52330642276626,"sku":"H057-0","price":2.52,"currency_code":"USD","in_stock":true},{"title":"13mm \/ 1M","offer_id":52330642309394,"sku":"H057-1","price":3.3,"currency_code":"USD","in_stock":true},{"title":"13mm \/ 3M","offer_id":52330642342162,"sku":"H057-2","price":6.45,"currency_code":"USD","in_stock":true},{"title":"13mm \/ 5M","offer_id":52330642374930,"sku":"H057-3","price":9.6,"currency_code":"USD","in_stock":true},{"title":"14mm \/ 0.5M","offer_id":52330642407698,"sku":"H057-5","price":2.56,"currency_code":"USD","in_stock":true},{"title":"14mm \/ 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