{"product_id":"08mm-heat-shrink-tubing-21-ratio-7-colors","title":"0.8mm Heat Shrink Tubing – 2:1 Ratio, 7 Colors, 1–10M 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\": \"What does 0.8mm inner diameter mean, and how do I choose the right size?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The 0.8mm measurement refers to the inner diameter before shrinking. As a general rule, choose a tube whose pre-shrink ID is roughly 1.5–2× the diameter of the wire or connector you need to cover. For this 0.8mm tube, it is typically suited for very fine wires and leads — generally in the 0.3–0.5mm range. If you are unsure, contact us to confirm compatibility.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is the shrink ratio, and what will the final diameter be after shrinking?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"This tubing has a 2:1 shrink ratio, meaning it shrinks to approximately half its original inner diameter when heat is applied. Starting at φ0.8mm, the recovered (post-shrink) inner diameter is typically around 0.4mm. Actual results may vary slightly depending on the heat source and application time.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How strong is this heat shrink tubing — can it handle mechanical stress?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Polyolefin heat shrink tubing generally provides good tensile strength and abrasion resistance once shrunk. It forms a snug, protective sleeve around the wire that resists pulling and flexing in most low-to-medium stress applications. For high-vibration or heavy-duty environments, confirm the wall thickness and tensile rating with us before ordering.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is this heat shrink tubing suitable for outdoor or automotive use?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Standard polyolefin heat shrink tubing is generally resistant to moisture, mild chemicals, and UV exposure, making it suitable for automotive wiring harnesses and light outdoor applications. For prolonged direct UV exposure or harsh chemical environments, we recommend confirming the specific material rating with us.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What thread or connector standards is this tubing compatible with?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Heat shrink tubing does not follow a thread standard — it is sized by inner diameter. This 0.8mm tubing is compatible with any wire, lead, or component whose outer diameter is smaller than 0.8mm before shrinking. It works with both metric and imperial wire gauges in that size range.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I apply heat shrink tubing correctly?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Slide the tubing over the wire or connection before terminating (if possible), or thread it on afterward. Apply even heat using a heat gun set to the appropriate temperature — typically 90°C–120°C for standard polyolefin tubing. Move the heat source steadily along the tube to avoid scorching. A lighter can work in a pinch but may leave uneven results.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Why should I choose colored heat shrink tubing instead of plain black?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Color-coded heat shrink tubing makes wire identification fast and reliable — especially in multi-wire harnesses, automotive builds, and electronics projects where tracing individual conductors matters. Using red for positive, black for negative, and other colors for signal lines reduces troubleshooting time significantly.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\n\u003cdiv class=\"hdiy-desc\"\u003e\n\n  \u003cdiv class=\"hdiy-overview\"\u003e\n    \u003ch2\u003e0.8mm Heat Shrink Tubing — Color-Coded Wire Protection for Precision Electrical Work\u003c\/h2\u003e\n    \u003cp\u003eWhen you are working with fine wires in automotive harnesses, hobby electronics, or delicate PCB repairs, a loose or uninsulated connection is not just inconvenient — it can cause shorts, signal loss, or permanent damage. This 0.8mm heat shrink tubing gives electricians, automotive technicians, and DIY builders a clean, reliable way to insulate and protect the smallest conductors in their projects.\u003c\/p\u003e\n    \u003cp\u003eEach order includes your chosen length of polyolefin heat shrink tubing in a single color, with an inner diameter of φ0.8mm (≈0.031\") before shrinking. The 2:1 shrink ratio means the tubing recovers to approximately half its original diameter when heat is applied. Available in lengths of 1 metre (≈3.3 ft), 2 metres (≈6.6 ft), 5 metres (≈16.4 ft), and 10 metres (≈32.8 ft), and in seven colors: Black, White, Red, Green, Yellow, Blue, and Transparent.\u003c\/p\u003e\n    \u003cp\u003eTypical use cases include color-coding wires in automotive wiring harnesses, insulating solder joints on fine-gauge leads in RC models and drones, protecting exposed conductors in marine electronics, and bundling signal wires in home theater or audio installations where a clean, professional finish matters.\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 This tubing is designed for wires and components with an outer diameter of \u003cstrong\u003e0.8mm (≈0.031\") or less\u003c\/strong\u003e. The 2:1 ratio recovers to approximately φ0.4mm after shrinking. If your wire gauge is larger, please check our other diameter listings.\n  \u003c\/div\u003e\n\n  \u003ch2\u003e✅ Key Features of These 0.8mm 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 pre-shrink inner diameter, creating a snug, form-fitting sleeve that locks onto fine wires and solder joints without slipping.\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 — Available in Black, White, Red, Green, Yellow, Blue, and Transparent, making color-coded wire identification straightforward in automotive wiring harnesses and multi-conductor assemblies.\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📏\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eFlexible Length Selection\u003c\/strong\u003e — Choose from 1m, 2m, 5m, or 10m rolls so you only buy what your project needs — whether it is a single repair or a full wiring harness build.\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, mild chemicals, and surface abrasion, extending the service life of insulated connections.\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 — Once shrunk, the tubing forms a continuous insulating sleeve that helps prevent short circuits and signal interference in tight wire routing situations.\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔧\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eEasy Heat Application\u003c\/strong\u003e — Compatible with standard heat guns and similar tools; shrinks evenly with consistent heat, making it practical for both bench work and in-vehicle automotive repairs.\u003c\/span\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003e📐 Technical Specifications — 0.8mm Heat Shrink Tubing\u003c\/h2\u003e\n  \u003cdiv class=\"hdiy-table-wrap\"\u003e\n    \u003ctable\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003cth\u003eInner Diameter (Pre-Shrink)\u003c\/th\u003e\n\u003ctd\u003eφ0.8mm (≈0.031\")\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eRecovered Inner Diameter (Post-Shrink)\u003c\/th\u003e\n\u003ctd\u003eTypically ≈φ0.4mm (2:1 ratio)\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\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003ePolyolefin (standard grade)\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, Transparent\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eAvailable Lengths\u003c\/th\u003e\n\u003ctd\u003e1m (≈3.3 ft), 2m (≈6.6 ft), 5m (≈16.4 ft), 10m (≈32.8 ft)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eShrink Temperature\u003c\/th\u003e\n\u003ctd\u003eSee variant options \/ Contact us to confirm\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eWall Thickness (Post-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\u003eContact us to confirm\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eSuitable Wire OD\u003c\/th\u003e\n\u003ctd\u003eUp to φ0.8mm pre-shrink\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003ctd\u003eAutomotive wiring, electronics, hobby, marine\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\u003eSpec Note:\u003c\/strong\u003e Shrink temperature and post-shrink wall thickness are not confirmed for this listing. If these values are critical for your application, please contact us before ordering.\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\u003eWhat does 0.8mm inner diameter mean, and how do I choose the right size?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eThe 0.8mm measurement refers to the inner diameter \u003cem\u003ebefore\u003c\/em\u003e shrinking. As a general rule, choose a tube whose pre-shrink ID is roughly 1.5–2× the outer diameter of the wire or connector you need to cover. For this 0.8mm tube, it is typically suited for very fine wires and leads — generally in the 0.3–0.5mm range. If you are unsure, contact us to confirm compatibility before ordering.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat is the shrink ratio, and what will the final diameter be after shrinking?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eThis tubing has a 2:1 shrink ratio, meaning it shrinks to approximately half its original inner diameter when heat is applied. Starting at φ0.8mm, the recovered inner diameter is typically around φ0.4mm. Actual results may vary slightly depending on the heat source temperature and application time.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow strong is this heat shrink tubing — can it handle mechanical stress?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003ePolyolefin heat shrink tubing generally provides good tensile strength and abrasion resistance once shrunk. It forms a snug protective sleeve that resists pulling and flexing in most low-to-medium stress applications. For high-vibration or heavy-duty environments, we recommend confirming the wall thickness and tensile rating with us before ordering.\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 automotive use?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eStandard polyolefin heat shrink tubing is generally resistant to moisture, mild chemicals, and UV exposure, making it suitable for automotive wiring harnesses and light outdoor applications. For prolonged direct UV exposure or harsh chemical environments, we recommend confirming the specific material rating with us before use.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat wire sizes or connector standards is this tubing compatible with?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eHeat shrink tubing is sized by inner diameter rather than a thread or connector standard. This 0.8mm tubing is compatible with any wire or component whose outer diameter is smaller than 0.8mm before shrinking. It works with both metric and imperial wire gauges in that size range — typically very fine signal wires, thermocouple leads, and small electronic component leads.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow do I apply heat shrink tubing correctly?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eSlide the tubing over the wire or connection point before making the final termination where possible. Apply even heat using a heat gun — typically set to around 90°C–120°C for standard polyolefin tubing. Move the heat source steadily along the tube to shrink it evenly and avoid scorching. A lighter can work in a pinch but may produce uneven results on very fine tubing like this 0.8mm size.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhy should I use colored heat shrink tubing instead of plain black?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eColor-coded heat shrink tubing makes wire identification fast and reliable — especially in multi-wire harnesses, automotive builds, and electronics projects where tracing individual conductors matters. Using red for positive, black for negative, and other colors for signal lines reduces troubleshooting time significantly and helps meet wiring documentation standards in professional installations.\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 \/ φ0.8mm \/ 1 Metre","offer_id":52331123147026,"sku":"GYWXWGLBZSJ000008x1","price":1.35,"currency_code":"USD","in_stock":true},{"title":"White \/ φ0.8mm \/ 1 Metre","offer_id":52331123179794,"sku":"GYWXWGLBZSJ000009x1","price":1.7,"currency_code":"USD","in_stock":true},{"title":"Red \/ φ0.8mm \/ 1 Metre","offer_id":52331123212562,"sku":"GYWXWGLBZSJ000010x1","price":1.7,"currency_code":"USD","in_stock":true},{"title":"Green \/ φ0.8mm \/ 1 Metre","offer_id":52331123245330,"sku":"GYWXWGLBZSJ000011x1","price":1.7,"currency_code":"USD","in_stock":true},{"title":"Yellow \/ φ0.8mm \/ 1 Metre","offer_id":52331123278098,"sku":"GYWXWGLBZSJ000012x1","price":1.7,"currency_code":"USD","in_stock":true},{"title":"Blue \/ φ0.8mm \/ 1 Metre","offer_id":52331123310866,"sku":"GYWXWGLBZSJ000013x1","price":1.7,"currency_code":"USD","in_stock":true},{"title":"Transparent \/ φ0.8mm \/ 1 Metre","offer_id":52331123343634,"sku":"GYWXWGLBZSJ000014x1","price":1.7,"currency_code":"USD","in_stock":true},{"title":"Black \/ φ0.8mm \/ 2 Metre","offer_id":52331123376402,"sku":"GYWXWGLBZSJ000008x2","price":1.75,"currency_code":"USD","in_stock":true},{"title":"White \/ φ0.8mm \/ 2 Metre","offer_id":52331123409170,"sku":"GYWXWGLBZSJ000009x2","price":1.8,"currency_code":"USD","in_stock":true},{"title":"Red \/ φ0.8mm \/ 2 Metre","offer_id":52331123441938,"sku":"GYWXWGLBZSJ000010x2","price":1.8,"currency_code":"USD","in_stock":true},{"title":"Green \/ φ0.8mm \/ 2 Metre","offer_id":52331123474706,"sku":"GYWXWGLBZSJ000011x2","price":1.8,"currency_code":"USD","in_stock":true},{"title":"Yellow \/ φ0.8mm \/ 2 Metre","offer_id":52331123507474,"sku":"GYWXWGLBZSJ000012x2","price":1.8,"currency_code":"USD","in_stock":true},{"title":"Blue \/ φ0.8mm \/ 2 Metre","offer_id":52331123540242,"sku":"GYWXWGLBZSJ000013x2","price":1.8,"currency_code":"USD","in_stock":true},{"title":"Transparent \/ φ0.8mm \/ 2 Metre","offer_id":52331123573010,"sku":"GYWXWGLBZSJ000014x2","price":1.8,"currency_code":"USD","in_stock":true},{"title":"Black \/ φ0.8mm \/ 5 Metre","offer_id":52331123605778,"sku":"GYWXWGLBZSJ000008x5","price":2.0,"currency_code":"USD","in_stock":true},{"title":"White \/ φ0.8mm \/ 5 Metre","offer_id":52331123638546,"sku":"GYWXWGLBZSJ000009x5","price":2.08,"currency_code":"USD","in_stock":true},{"title":"Red \/ φ0.8mm \/ 5 Metre","offer_id":52331123671314,"sku":"GYWXWGLBZSJ000010x5","price":2.08,"currency_code":"USD","in_stock":true},{"title":"Green \/ φ0.8mm \/ 5 Metre","offer_id":52331123704082,"sku":"GYWXWGLBZSJ000011x5","price":2.08,"currency_code":"USD","in_stock":true},{"title":"Yellow \/ φ0.8mm \/ 5 Metre","offer_id":52331123736850,"sku":"GYWXWGLBZSJ000012x5","price":2.08,"currency_code":"USD","in_stock":true},{"title":"Blue \/ φ0.8mm \/ 5 Metre","offer_id":52331123769618,"sku":"GYWXWGLBZSJ000013x5","price":2.08,"currency_code":"USD","in_stock":true},{"title":"Transparent \/ φ0.8mm \/ 5 Metre","offer_id":52331123802386,"sku":"GYWXWGLBZSJ000014x5","price":2.08,"currency_code":"USD","in_stock":true},{"title":"Black \/ φ0.8mm \/ 10 Metre","offer_id":52331123835154,"sku":"GYWXWGLBZSJ000008x10","price":2.41,"currency_code":"USD","in_stock":true},{"title":"White \/ φ0.8mm \/ 10 Metre","offer_id":52331123867922,"sku":"GYWXWGLBZSJ000009x10","price":2.56,"currency_code":"USD","in_stock":true},{"title":"Red \/ φ0.8mm \/ 10 Metre","offer_id":52331123900690,"sku":"GYWXWGLBZSJ000010x10","price":2.56,"currency_code":"USD","in_stock":true},{"title":"Green \/ φ0.8mm \/ 10 Metre","offer_id":52331123933458,"sku":"GYWXWGLBZSJ000011x10","price":2.56,"currency_code":"USD","in_stock":true},{"title":"Yellow \/ φ0.8mm \/ 10 Metre","offer_id":52331123966226,"sku":"GYWXWGLBZSJ000012x10","price":2.56,"currency_code":"USD","in_stock":true},{"title":"Blue \/ φ0.8mm \/ 10 Metre","offer_id":52331123998994,"sku":"GYWXWGLBZSJ000013x10","price":2.56,"currency_code":"USD","in_stock":true},{"title":"Transparent \/ φ0.8mm \/ 10 Metre","offer_id":52331124031762,"sku":"GYWXWGLBZSJ000014x10","price":2.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture1of12_a916a0af-7d89-480f-a7e1-18f79085c770.jpg?v=1780996143","url":"https:\/\/homediyer.com\/products\/08mm-heat-shrink-tubing-21-ratio-7-colors","provider":"HomeDIYer","version":"1.0","type":"link"}