{"product_id":"heat-shrink-tubing-2-1-ratio-large-diameter-80mm-210mm","title":"Heat Shrink Tubing 2:1 Ratio — Large Diameter Cable Sleeving 80mm to 210mm","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 application?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Measure the outer diameter of the cable bundle or component you need to cover. Choose a heat shrink size whose recovered (post-shrink) diameter is slightly smaller than your bundle. For a 2:1 ratio tube, the recovered diameter is generally half the supplied diameter — for example, an 80mm tube typically recovers to approximately 40mm. Always size up if you are between sizes to ensure the tubing slides on easily before shrinking.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What shrink ratio does this tubing use?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"This tubing uses a 2:1 shrink ratio, meaning it shrinks to approximately half its original supplied diameter when heat is applied. This is the most common ratio for general-purpose electrical insulation and cable bundling.\"\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 of this type generally activates at around 90°C (194°F) and fully recovers at approximately 120°C (248°F). A heat gun is recommended for large-diameter tubing to ensure even, controlled shrinkage. Open flames are not recommended as they can cause uneven shrinkage or scorching.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is this heat shrink tubing suitable for outdoor or wet environments?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Standard polyolefin heat shrink tubing generally provides good moisture resistance once fully recovered, making it suitable for many indoor and light outdoor applications. For prolonged outdoor exposure, UV resistance, or submersion, we recommend confirming suitability with our team before ordering, as performance can vary by environment.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What materials and cables is this tubing compatible with?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"This tubing is generally compatible with copper, aluminum, and other standard electrical conductors, as well as wire harnesses, hydraulic hoses, and mechanical components. It is not designed for use with materials that require chemical-resistant or high-voltage-rated sleeving — contact us to confirm compatibility for specialized applications.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I cut this tubing to a shorter length?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. Each piece is sold as a 1-meter length and can be cut to any shorter length with scissors or a utility knife before or after shrinking. Cut ends do not fray. For very large diameters (150mm and above), sharp scissors or a box cutter will give the cleanest cut.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I select the right color?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Color is typically chosen for identification or aesthetics. Black is the most common choice for general electrical work. Clear allows you to see the underlying cable or label. Red, Blue, Green, Yellow, and White are commonly used for color-coding wire harnesses, phase identification in electrical panels, or matching equipment aesthetics.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\n\u003cdiv class=\"hdiy-desc\"\u003e\n\n  \u003cdiv class=\"hdiy-overview\"\u003e\n    \u003ch2\u003eHeat Shrink Tubing 2:1 Ratio — Reliable Large-Diameter Cable Protection from 80mm to 210mm\u003c\/h2\u003e\n    \u003cp\u003eWhen you're working with thick cable bundles, wire harnesses, hydraulic hoses, or large electrical components, standard small-bore heat shrink just doesn't cut it. Electricians, automotive technicians, marine riggers, and industrial maintenance crews all face the same challenge: finding large-diameter heat shrink tubing that slides on easily, shrinks cleanly, and stays put. This 2:1 ratio heat shrink tubing is built for exactly those jobs.\u003c\/p\u003e\n    \u003cp\u003eEach piece is sold as a 1-meter (≈39.4\") length and is available in seven diameters — 80mm (≈3.1\"), 90mm (≈3.5\"), 100mm (≈3.9\"), 120mm (≈4.7\"), 150mm (≈5.9\"), 180mm (≈7.1\"), and 210mm (≈8.3\") — covering a wide range of bundle sizes. The 2:1 shrink ratio means each tube recovers to approximately half its supplied diameter when heat is applied. Made from polyolefin, it offers a balance of flexibility, electrical insulation, and moisture resistance. Available in Black, White, Red, Green, Yellow, Blue, and Clear to suit color-coding or aesthetic requirements.\u003c\/p\u003e\n    \u003cp\u003eTypical applications include bundling and protecting large automotive wire looms, insulating bus bars and electrical panel connections, sleeving hydraulic and pneumatic hoses in industrial equipment, and providing strain relief on heavy-duty power cables. Whether you're doing a marine rewire, a workshop machine repair, or a custom vehicle build, this large-diameter heat shrink sleeving gives you a clean, professional finish.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-compat\"\u003e\n    \u003cspan class=\"hdiy-compat-icon\"\u003eℹ️\u003c\/span\u003e\n    \u003cstrong\u003eCompatibility Note:\u003c\/strong\u003e Suitable for copper, aluminum, and standard electrical conductors. Works with wire harnesses, hoses, and mechanical components. For high-voltage or chemical-exposure applications, \u003ca href=\"\/de\/pages\/contact\"\u003econtact us to confirm suitability\u003c\/a\u003e before ordering.\n  \u003c\/div\u003e\n\n  \u003ch2\u003e✅ Key Features of These Large-Diameter 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 — Recovers to approximately half its supplied diameter, giving a snug, secure fit over cables, hoses, and connectors without excessive bulk.\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\u003c\/strong\u003e — Available from 80mm to 210mm to cover everything from mid-size cable bundles to large bus bars and industrial hose assemblies.\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🎨\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003e7 Color Options\u003c\/strong\u003e — Black, White, Red, Green, Yellow, Blue, and Clear allow easy color-coding of wire harnesses, phase identification, and equipment matching.\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚡\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003ePolyolefin Construction\u003c\/strong\u003e — Provides electrical insulation, flexibility after recovery, and general moisture resistance for indoor and light outdoor cable sleeving applications.\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 Convenience\u003c\/strong\u003e — Each 1-meter piece can be trimmed to any shorter length with scissors or a utility knife; cut ends do not fray or unravel.\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔧\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eHeat Gun Compatible\u003c\/strong\u003e — Designed for use with a standard heat gun for even, controlled shrinkage across the full diameter — ideal for large-bore heat shrink sleeving where open flames risk uneven results.\u003c\/span\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003e📐 Technical Specifications — Large Diameter 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 \/ Heatshrink Sleeving\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\u003eAvailable Diameters (Supplied)\u003c\/th\u003e\n\u003ctd\u003e80mm (≈3.1\"), 90mm (≈3.5\"), 100mm (≈3.9\"), 120mm (≈4.7\"), 150mm (≈5.9\"), 180mm (≈7.1\"), 210mm (≈8.3\")\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eRecovered Diameter (Approx.)\u003c\/th\u003e\n\u003ctd\u003eTypically ~50% of supplied diameter (e.g., 80mm → ~40mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eLength per Piece\u003c\/th\u003e\n\u003ctd\u003e1 Meter (≈39.4\")\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003ePolyolefin\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eAvailable Colors\u003c\/th\u003e\n\u003ctd\u003eBlack, White, Red, Green, Yellow, Blue, Clear\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eActivation Temperature\u003c\/th\u003e\n\u003ctd\u003eTypically ~90°C (194°F); full recovery at ~120°C (248°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eWall Thickness (Recovered)\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\u003eFlame Retardancy\u003c\/th\u003e\n\u003ctd\u003eContact us to confirm\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eApplication Method\u003c\/th\u003e\n\u003ctd\u003eHeat gun recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\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\u003eHow do I choose the right diameter for my application?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eMeasure the outer diameter of the cable bundle or component you need to cover. Choose a heat shrink size whose recovered (post-shrink) diameter is slightly smaller than your bundle. For a 2:1 ratio tube, the recovered diameter is generally half the supplied diameter — for example, an 80mm (≈3.1\") tube typically recovers to approximately 40mm (≈1.6\"). Always size up if you are between sizes to ensure the tubing slides on easily before shrinking.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\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 tubing uses a 2:1 shrink ratio, meaning it shrinks to approximately half its original supplied diameter when heat is applied. This is the most common ratio for general-purpose electrical insulation and cable bundling tasks.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\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\u003ePolyolefin heat shrink tubing of this type generally activates at around 90°C (194°F) and fully recovers at approximately 120°C (248°F). A heat gun is strongly recommended for large-diameter tubing to ensure even, controlled shrinkage. Open flames are not recommended as they can cause uneven shrinkage or surface 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 or wet environments?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eStandard polyolefin heat shrink tubing generally provides good moisture resistance once fully recovered, making it suitable for many indoor and light outdoor applications. For prolonged outdoor UV exposure or submersion, we recommend \u003ca href=\"\/de\/pages\/contact\"\u003econtacting us\u003c\/a\u003e to confirm suitability before ordering, as performance can vary by environment and installation conditions.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat materials and cables is this tubing compatible with?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eThis tubing is generally compatible with copper, aluminum, and other standard electrical conductors, as well as wire harnesses, hydraulic hoses, and mechanical components. It is not designed for applications requiring chemical-resistant or high-voltage-rated sleeving — \u003ca href=\"\/de\/pages\/contact\"\u003econtact us\u003c\/a\u003e to confirm compatibility for specialized use cases.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eCan I cut this tubing to a shorter length?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eYes. Each piece is sold as a 1-meter (≈39.4\") length and can be cut to any shorter length with scissors or a utility knife before or after shrinking. Cut ends do not fray. For very large diameters (150mm and above), sharp scissors or a box cutter will give the cleanest cut.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow do I select the right color?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eColor is typically chosen for identification or aesthetics. Black is the most common choice for general electrical work. Clear allows you to see the underlying cable or label. Red, Blue, Green, Yellow, and White are commonly used for color-coding wire harnesses, phase identification in electrical panels, or matching equipment aesthetics.\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 diameter and color above, then add to cart — ships from our US warehouse.\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"HomeDIYer","offers":[{"title":"80mm \/ Black \/ 1 Meter","offer_id":52330412572946,"sku":"BGMGLBZSJ000247x1","price":20.51,"currency_code":"USD","in_stock":true},{"title":"80mm \/ White \/ 1 Meter","offer_id":52330412605714,"sku":"BGMGLBZSJ000248x1","price":21.08,"currency_code":"USD","in_stock":true},{"title":"80mm \/ Red \/ 1 Meter","offer_id":52330412638482,"sku":"BGMGLBZSJ000249x1","price":21.08,"currency_code":"USD","in_stock":true},{"title":"80mm \/ Green \/ 1 Meter","offer_id":52330412671250,"sku":"BGMGLBZSJ000250x1","price":21.08,"currency_code":"USD","in_stock":true},{"title":"80mm \/ Yellow \/ 1 Meter","offer_id":52330412704018,"sku":"BGMGLBZSJ000251x1","price":21.08,"currency_code":"USD","in_stock":true},{"title":"80mm \/ Blue \/ 1 Meter","offer_id":52330412736786,"sku":"BGMGLBZSJ000252x1","price":21.08,"currency_code":"USD","in_stock":true},{"title":"80mm \/ Clear \/ 1 Meter","offer_id":52330412769554,"sku":"BGMGLBZSJ000253x1","price":21.08,"currency_code":"USD","in_stock":true},{"title":"90mm \/ Black \/ 1 Meter","offer_id":52330412802322,"sku":"BGMGLBZSJ000254x1","price":25.58,"currency_code":"USD","in_stock":true},{"title":"100mm \/ Black \/ 1 Meter","offer_id":52330412835090,"sku":"BGMGLBZSJ000255x1","price":27.3,"currency_code":"USD","in_stock":true},{"title":"100mm \/ Clear \/ 1 Meter","offer_id":52330412867858,"sku":"BGMGLBZSJ000256x1","price":28.44,"currency_code":"USD","in_stock":true},{"title":"120mm \/ Black \/ 1 Meter","offer_id":52330412900626,"sku":"BGMGLBZSJ000257x1","price":33.59,"currency_code":"USD","in_stock":true},{"title":"120mm \/ Clear \/ 1 Meter","offer_id":52330412933394,"sku":"BGMGLBZSJ000258x1","price":39.22,"currency_code":"USD","in_stock":true},{"title":"150mm \/ Black \/ 1 Meter","offer_id":52330412966162,"sku":"BGMGLBZSJ000259x1","price":41.0,"currency_code":"USD","in_stock":true},{"title":"150mm \/ Clear \/ 1 Meter","offer_id":52330412998930,"sku":"BGMGLBZSJ000260x1","price":46.08,"currency_code":"USD","in_stock":true},{"title":"180mm \/ Black \/ 1 Meter","offer_id":52330413031698,"sku":"BGMGLBZSJ000261x1","price":62.76,"currency_code":"USD","in_stock":true},{"title":"210mm \/ Black \/ 1 Meter","offer_id":52330413064466,"sku":"BGMGLBZSJ000263x1","price":80.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture_4_of_7_619df3db-8b2c-41bf-ac69-2bd9587a80bb.jpg?v=1780829213","url":"https:\/\/homediyer.com\/de\/products\/heat-shrink-tubing-2-1-ratio-large-diameter-80mm-210mm","provider":"HomeDIYer","version":"1.0","type":"link"}