{"product_id":"22mm-heat-shrink-tubing-2-1-electrical-insulation-sleeving","title":"22mm Heat Shrink Tubing 2:1 – Electrical Insulation Sleeving for Wire \u0026 Cable","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 length of heat shrink tubing?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Measure the total length of wire or cable you need to cover, then add at least 10–15% extra for overlap and trimming. For example, a 1m (≈39.4\\u201d) roll typically covers a single short run, while a 10m (≈32.8 ft) roll suits larger wiring projects. Choose the next size up if you're unsure.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What shrink ratio does this tubing use, and what does 2:1 mean?\",\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. A 22mm tube will shrink down to roughly 11mm, conforming tightly around the wire or connector.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What temperature is needed to shrink this tubing?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"This polyolefin heat shrink tubing generally activates at temperatures starting around 70–90°C (158–194°F) and fully shrinks at approximately 120°C (248°F). A standard heat gun is recommended; avoid open flames for even, controlled shrinkage.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is this heat shrink tubing suitable for outdoor or marine use?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"This tubing is made from polyolefin, which is generally moisture-resistant and suitable for light outdoor use. However, for harsh marine or direct-burial environments, a dual-wall adhesive-lined heat shrink is typically recommended for a fully waterproof seal.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What wire sizes does 22mm heat shrink tubing fit?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"With a 22mm inner diameter before shrinking, this tubing fits wire bundles, connectors, or cable jackets up to approximately 22mm in diameter. After shrinking, it conforms to items as small as roughly 11mm. It is well-suited for multi-conductor cables, battery terminals, and larger gauge wiring.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is this tubing flame-retardant and RoHS compliant?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Polyolefin heat shrink tubing of this type is generally flame-retardant and manufactured to meet RoHS guidelines, making it suitable for use in consumer electronics and automotive wiring. Please contact us to confirm specific compliance certifications for your application.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I use a lighter or hair dryer instead of a heat gun?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"A heat gun is strongly recommended for even, controlled shrinkage. A hair dryer may not reach sufficient temperatures for full shrinkage. An open flame can cause uneven shrinking or scorching and is generally not recommended for clean results.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\n\u003cdiv class=\"hdiy-desc\"\u003e\n\n  \u003cdiv class=\"hdiy-overview\"\u003e\n    \u003ch2\u003e22mm Heat Shrink Tubing 2:1 — Reliable Electrical Insulation for Every Wiring Job\u003c\/h2\u003e\n    \u003cp\u003eWhether you're rewiring a vehicle, bundling cables in a control panel, or protecting exposed conductors on a DIY electronics project, loose or unprotected wire ends are a safety hazard waiting to happen. Electricians, automotive technicians, and hands-on DIYers all need a fast, clean way to insulate and protect their work — and that's exactly what this 22mm heat shrink tubing delivers.\u003c\/p\u003e\n    \u003cp\u003eEach roll is made from flexible polyolefin with a 2:1 shrink ratio, meaning the 22mm (≈7\/8\") inner diameter shrinks down to approximately 11mm (≈7\/16\") when heat is applied. Available in lengths from 1 Meter (≈39.4\") up to 20 Meters (≈65.6 ft), and in seven colors — Black, White, Red, Green, Yellow, Blue, and Transparent — so you can color-code circuits or match your project's aesthetic.\u003c\/p\u003e\n    \u003cp\u003eTypical applications include insulating battery terminal connections in automotive wiring harnesses, bundling and protecting multi-conductor cables in home electrical panels, and sealing wire splices on marine or outdoor lighting installations where a clean, professional finish is required.\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 wire bundles, connectors, and cable jackets up to 22mm in diameter. Suitable for automotive, marine, industrial, and household electrical wiring applications. Works with any standard heat gun.\n  \u003c\/div\u003e\n\n  \u003ch2\u003e✅ Key Features of These 22mm 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 from 22mm down to approximately 11mm, conforming tightly around wire bundles, terminals, and connectors for a secure, gap-free fit.\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 — Made from polyolefin material that is generally flame-retardant, providing a durable insulating barrier that resists abrasion and protects against accidental short circuits.\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 for Circuit Identification\u003c\/strong\u003e — Available in Black, White, Red, Green, Yellow, Blue, and Transparent, making it easy to color-code wiring harnesses and simplify future troubleshooting.\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 — Choose from 1m, 3m, 5m, 10m, 15m, or 20m rolls to match your project scale, from a single splice repair to a full vehicle rewire.\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 standard scissors or a utility knife; slides easily over wire ends before shrinking, saving time on automotive wiring harness repairs and panel builds.\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e💧\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eMoisture-Resistant Construction\u003c\/strong\u003e — Polyolefin tubing is generally resistant to moisture, oils, and mild chemicals, making it suitable for engine bay wiring, outdoor cable management, and light marine applications.\u003c\/span\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003e📐 Technical Specifications — 22mm 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\u003ePolyolefin\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eInner Diameter (Before Shrink)\u003c\/th\u003e\n\u003ctd\u003e22mm (≈7\/8\")\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eInner Diameter (After Shrink)\u003c\/th\u003e\n\u003ctd\u003eApproximately 11mm (≈7\/16\")\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 Lengths\u003c\/th\u003e\n\u003ctd\u003e1m (≈39.4\"), 3m (≈9.8 ft), 5m (≈16.4 ft), 10m (≈32.8 ft), 15m (≈49.2 ft), 20m (≈65.6 ft)\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\u003eActivation Temperature\u003c\/th\u003e\n\u003ctd\u003eTypically 70–120°C (158–248°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eOperating Temperature Range\u003c\/th\u003e\n\u003ctd\u003eSee variant options \/ Contact us to confirm\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eFlame Retardancy\u003c\/th\u003e\n\u003ctd\u003eGenerally flame-retardant (contact us to confirm certification)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eWall Thickness (Before Shrink)\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eApplication Tool\u003c\/th\u003e\n\u003ctd\u003eHeat gun (recommended)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eSuitable For\u003c\/th\u003e\n\u003ctd\u003eAutomotive, marine, industrial, household electrical wiring\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 If you need to confirm exact wall thickness, operating temperature range, or compliance certifications (UL, RoHS, etc.) for a specific application, please contact us before ordering.\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 length of heat shrink tubing?\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 at least 10–15% extra for overlap and trimming. For example, a 1m (≈39.4\") roll typically covers a single short run, while a 10m (≈32.8 ft) roll suits larger wiring projects. When in doubt, choose the next size up — unused tubing stores easily for future repairs.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat shrink ratio does this tubing use, and what does 2:1 mean?\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. A 22mm tube will shrink down to roughly 11mm (≈7\/16\"), conforming tightly around the wire or connector for a clean, professional finish.\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\u003eThis polyolefin heat shrink tubing generally activates at temperatures starting around 70–90°C (158–194°F) and fully shrinks at approximately 120°C (248°F). A standard heat gun is recommended for even, controlled results. Avoid open flames, as they can 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 or marine use?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003ePolyolefin tubing is generally moisture-resistant and suitable for light outdoor use, including engine bays and outdoor cable runs. For harsh marine or direct-burial environments, a dual-wall adhesive-lined heat shrink is typically recommended for a fully waterproof seal. Contact us to confirm the best option for your application.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat wire sizes does 22mm heat shrink tubing fit?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eWith a 22mm inner diameter before shrinking, this tubing fits wire bundles, connectors, or cable jackets up to approximately 22mm in diameter. After shrinking, it conforms to items as small as roughly 11mm. It is well-suited for multi-conductor cables, battery terminals, and larger gauge automotive or industrial wiring.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eIs this tubing flame-retardant and RoHS compliant?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003ePolyolefin heat shrink tubing of this type is generally flame-retardant and manufactured to meet RoHS guidelines, making it suitable for consumer electronics and automotive wiring applications. Please contact us to confirm specific compliance certifications for your project requirements.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eCan I use a lighter or hair dryer instead of a heat gun?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eA heat gun is strongly recommended for even, controlled shrinkage. A hair dryer may not reach sufficient temperatures for full shrinkage on 22mm tubing. An open flame can cause uneven shrinking or scorching and is generally not recommended for clean, professional results.\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 color and length 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":52330818765074,"sku":"GLFBFHHGLBZSJ000177x1","price":2.6,"currency_code":"USD","in_stock":true},{"title":"White \/ 1 Meter","offer_id":52330818797842,"sku":"GLFBFHHGLBZSJ000178x1","price":2.77,"currency_code":"USD","in_stock":true},{"title":"Red \/ 1 Meter","offer_id":52330818830610,"sku":"GLFBFHHGLBZSJ000179x1","price":2.77,"currency_code":"USD","in_stock":true},{"title":"Green \/ 1 Meter","offer_id":52330818863378,"sku":"GLFBFHHGLBZSJ000180x1","price":2.77,"currency_code":"USD","in_stock":true},{"title":"Yellow \/ 1 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