{"product_id":"25mm-heat-shrink-tubing-2-1-electrical-cable-wire-wrap","title":"25mm Heat Shrink Tubing 2:1 – Electrical Cable Wire Wrap, Multiple Colors","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 the cable or splice you need to cover, then add at least 10–15% extra to account for overlap at each end. For most automotive or home wiring jobs, 1m or 2m lengths are sufficient for individual repairs, while 5m or 10m rolls are better suited for larger projects or workshop stock.\"\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 will shrink to approximately half its original inner diameter when heat is applied. This 25mm tubing will typically shrink down to around 12.5mm (≈1\/2\\u2033), creating a snug, secure fit around the cable or connector.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can this heat shrink tubing be used outdoors or in automotive applications?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. This tubing is generally suitable for automotive wiring harnesses, engine bay repairs, and outdoor electrical connections. It provides insulation against moisture and abrasion. For prolonged submersion or extreme chemical exposure, confirm suitability with your specific application requirements.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What tool do I use to shrink the tubing?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"A heat gun is the recommended tool for even, controlled shrinking. In a pinch, a lighter or match can work for small sections, but a heat gun gives more consistent results and reduces the risk of scorching. Avoid open flames near sensitive components.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is this tubing compatible with standard wire gauges?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"With a 25mm inner diameter before shrinking, this tubing is designed for larger cable bundles, conduit ends, and multi-wire harnesses rather than individual small-gauge wires. It is generally compatible with cable bundles or connectors up to approximately 25mm in diameter.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I select the right color for my project?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Color coding is a common practice in electrical work to identify circuits or wire groups at a glance. Black is the most universal choice for general insulation. Red typically indicates positive\/live wires, while other colors (blue, green, yellow, white) are used for neutral, ground, or signal lines depending on your wiring standard.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\n\u003cdiv class=\"hdiy-desc\"\u003e\n\n  \u003cdiv class=\"hdiy-overview\"\u003e\n    \u003ch2\u003e25mm Heat Shrink Tubing — Reliable Insulation for Electrical Cable Wire Wrap\u003c\/h2\u003e\n    \u003cp\u003eWhether you're chasing down a wiring fault in your car, tidying up a home electrical panel, or protecting a marine cable splice from moisture, loose or exposed wires are a safety hazard you can't ignore. This 25mm heat shrink tubing gives electricians, automotive technicians, and serious DIYers a fast, clean way to insulate, bundle, and protect cable connections without tape that unravels or connectors that corrode.\u003c\/p\u003e\n    \u003cp\u003eEach order includes a continuous length of 2:1 ratio heat shrink tubing with a 25mm (≈1\") inner diameter before shrinking, available in lengths of 1 Metre (≈3.3 ft), 2 Metre (≈6.6 ft), 5 Metre (≈16.4 ft), or 10 Metre (≈32.8 ft). The tubing is made from polyolefin, a material known for its flexibility, electrical insulation properties, and resistance to abrasion. Seven color options — Black, White, Red, Green, Yellow, Blue, and Transparent — make color-coded wiring organization straightforward.\u003c\/p\u003e\n    \u003cp\u003eTypical use cases include automotive wiring harness repair and protection, bundling multi-conductor cable runs in workshops or control panels, and sealing splice joints on outdoor or marine electrical installations where moisture ingress is a concern.\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:\u003c\/strong\u003e Fits cable bundles and connectors up to 25mm (≈1\") in diameter. After shrinking at 2:1 ratio, recovered inner diameter is typically ≈12.5mm (≈1\/2\"). Confirm your cable bundle diameter before ordering.\n  \u003c\/div\u003e\n\n  \u003ch2\u003e✅ Key Features of These 25mm 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 original diameter when heat is applied, creating a firm, conforming fit around cable bundles and connectors up to 25mm wide.\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 to support color-coded wiring systems and circuit identification in automotive and electrical work.\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📏\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003e4 Length Options\u003c\/strong\u003e — Choose from 1m, 2m, 5m, or 10m to match the scale of your project, from a single splice repair to stocking a workshop with heat shrink tubing for electrical cable wrap.\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 — Offers solid electrical insulation, abrasion resistance, and flexibility across a range of temperatures, making it suitable for automotive wiring harness protection and indoor panel work.\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 — Once shrunk, the tubing forms a protective sleeve that helps guard against moisture, dust, and mechanical wear — useful for outdoor cable splices and engine bay wiring.\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; shrinks evenly with a heat gun for a consistent finish on cable wire wrap projects of any size.\u003c\/span\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003e📐 Technical Specifications — 25mm 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 (Before Shrink)\u003c\/th\u003e\n\u003ctd\u003e25mm (≈1\")\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eRecovered Inner Diameter (After Shrink)\u003c\/th\u003e\n\u003ctd\u003eTypically ≈12.5mm (≈1\/2\") at 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\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\u003eWall Thickness (Before 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\u003eShrink Temperature\u003c\/th\u003e\n\u003ctd\u003eGenerally 70–120°C (158–248°F) for polyolefin tubing\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eRecommended Application Tool\u003c\/th\u003e\n\u003ctd\u003eHeat gun\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eTypical Applications\u003c\/th\u003e\n\u003ctd\u003eAutomotive wiring, electrical cable insulation, cable bundling, splice protection\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 Wall thickness and exact operating temperature range vary by production batch. If your application has strict thermal or dielectric requirements, please contact us to confirm specifications 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\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 the cable or splice you need to cover, then add at least 10–15% extra to account for overlap at each end. For most automotive or home wiring jobs, 1m or 2m lengths are sufficient for individual repairs, while 5m or 10m rolls are better suited for larger projects or workshop stock.\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 will shrink to approximately half its original inner diameter when heat is applied. This 25mm tubing will typically shrink down to around 12.5mm (≈1\/2\"), creating a snug, secure fit around the cable or connector.\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 automotive applications?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eYes. This tubing is generally suitable for automotive wiring harnesses, engine bay repairs, and outdoor electrical connections. It provides insulation against moisture and abrasion. For prolonged submersion or extreme chemical exposure, confirm suitability with your specific application requirements.\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?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eA heat gun is the recommended tool for even, controlled shrinking. In a pinch, a lighter or match can work for small sections, but a heat gun gives more consistent results and reduces the risk of scorching. Avoid open flames near sensitive components.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eIs this tubing compatible with standard wire gauges and cable bundles?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eWith a 25mm inner diameter before shrinking, this tubing is designed for larger cable bundles, conduit ends, and multi-wire harnesses rather than individual small-gauge wires. It is generally compatible with cable bundles or connectors up to approximately 25mm in diameter. For smaller individual wires, consider a smaller diameter tubing.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow do I select the right color for my project?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eColor coding is a common practice in electrical work to identify circuits or wire groups at a glance. Black is the most universal choice for general insulation. Red typically indicates positive\/live wires, while other colors (Blue, Green, Yellow, White) are used for neutral, ground, or signal lines depending on your wiring standard. Transparent is useful when you need to see the underlying cable markings after installation.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow much does the tubing shrink in length when heat is applied?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003ePolyolefin heat shrink tubing typically experiences minimal longitudinal (lengthwise) shrinkage — generally less than 10% in most cases. The primary shrinkage is radial (diameter). Plan your cut lengths accordingly and always test on a scrap piece first if length precision is critical.\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 \/ φ25mm \/ 1 Metre","offer_id":52331114758418,"sku":"GYWXWGLBZSJ000184x1","price":2.71,"currency_code":"USD","in_stock":true},{"title":"White \/ φ25mm \/ 1 Metre","offer_id":52331114791186,"sku":"GYWXWGLBZSJ000185x1","price":2.9,"currency_code":"USD","in_stock":true},{"title":"Red \/ φ25mm \/ 1 Metre","offer_id":52331114823954,"sku":"GYWXWGLBZSJ000186x1","price":2.9,"currency_code":"USD","in_stock":true},{"title":"Green \/ φ25mm \/ 1 Metre","offer_id":52331114856722,"sku":"GYWXWGLBZSJ000187x1","price":2.9,"currency_code":"USD","in_stock":true},{"title":"Yellow \/ φ25mm \/ 1 Metre","offer_id":52331114889490,"sku":"GYWXWGLBZSJ000188x1","price":2.9,"currency_code":"USD","in_stock":true},{"title":"Blue \/ φ25mm \/ 1 Metre","offer_id":52331114922258,"sku":"GYWXWGLBZSJ000189x1","price":2.9,"currency_code":"USD","in_stock":true},{"title":"Transparent \/ φ25mm \/ 1 Metre","offer_id":52331114955026,"sku":"GYWXWGLBZSJ000190x1","price":2.9,"currency_code":"USD","in_stock":true},{"title":"Black \/ φ25mm \/ 2 Metre","offer_id":52331114987794,"sku":"GYWXWGLBZSJ000184x2","price":4.77,"currency_code":"USD","in_stock":true},{"title":"White \/ φ25mm \/ 2 Metre","offer_id":52331115020562,"sku":"GYWXWGLBZSJ000185x2","price":5.06,"currency_code":"USD","in_stock":true},{"title":"Red \/ φ25mm \/ 2 Metre","offer_id":52331115053330,"sku":"GYWXWGLBZSJ000186x2","price":5.06,"currency_code":"USD","in_stock":true},{"title":"Green \/ φ25mm \/ 2 Metre","offer_id":52331115086098,"sku":"GYWXWGLBZSJ000187x2","price":5.06,"currency_code":"USD","in_stock":true},{"title":"Yellow \/ φ25mm \/ 2 Metre","offer_id":52331115118866,"sku":"GYWXWGLBZSJ000188x2","price":5.06,"currency_code":"USD","in_stock":true},{"title":"Blue \/ φ25mm \/ 2 Metre","offer_id":52331115151634,"sku":"GYWXWGLBZSJ000189x2","price":5.06,"currency_code":"USD","in_stock":true},{"title":"Transparent \/ φ25mm \/ 2 Metre","offer_id":52331115184402,"sku":"GYWXWGLBZSJ000190x2","price":5.06,"currency_code":"USD","in_stock":true},{"title":"Black \/ φ25mm \/ 5 Metre","offer_id":52331115217170,"sku":"GYWXWGLBZSJ000184x5","price":10.83,"currency_code":"USD","in_stock":true},{"title":"White \/ φ25mm \/ 5 Metre","offer_id":52331115249938,"sku":"GYWXWGLBZSJ000185x5","price":11.55,"currency_code":"USD","in_stock":true},{"title":"Red \/ φ25mm \/ 5 Metre","offer_id":52331115282706,"sku":"GYWXWGLBZSJ000186x5","price":11.55,"currency_code":"USD","in_stock":true},{"title":"Green \/ φ25mm \/ 5 Metre","offer_id":52331115315474,"sku":"GYWXWGLBZSJ000187x5","price":11.55,"currency_code":"USD","in_stock":true},{"title":"Yellow \/ φ25mm \/ 5 Metre","offer_id":52331115348242,"sku":"GYWXWGLBZSJ000188x5","price":11.55,"currency_code":"USD","in_stock":true},{"title":"Blue \/ φ25mm \/ 5 Metre","offer_id":52331115381010,"sku":"GYWXWGLBZSJ000189x5","price":11.55,"currency_code":"USD","in_stock":true},{"title":"Transparent \/ φ25mm \/ 5 Metre","offer_id":52331115413778,"sku":"GYWXWGLBZSJ000190x5","price":11.55,"currency_code":"USD","in_stock":true},{"title":"Black \/ φ25mm \/ 10 Metre","offer_id":52331115446546,"sku":"GYWXWGLBZSJ000184x10","price":20.92,"currency_code":"USD","in_stock":true},{"title":"White \/ φ25mm \/ 10 Metre","offer_id":52331115479314,"sku":"GYWXWGLBZSJ000185x10","price":22.36,"currency_code":"USD","in_stock":true},{"title":"Red \/ φ25mm \/ 10 Metre","offer_id":52331115512082,"sku":"GYWXWGLBZSJ000186x10","price":22.36,"currency_code":"USD","in_stock":true},{"title":"Green \/ φ25mm \/ 10 Metre","offer_id":52331115544850,"sku":"GYWXWGLBZSJ000187x10","price":22.36,"currency_code":"USD","in_stock":true},{"title":"Yellow \/ φ25mm \/ 10 Metre","offer_id":52331115577618,"sku":"GYWXWGLBZSJ000188x10","price":22.36,"currency_code":"USD","in_stock":true},{"title":"Blue \/ φ25mm \/ 10 Metre","offer_id":52331115610386,"sku":"GYWXWGLBZSJ000189x10","price":22.36,"currency_code":"USD","in_stock":true},{"title":"Transparent \/ φ25mm \/ 10 Metre","offer_id":52331115643154,"sku":"GYWXWGLBZSJ000190x10","price":22.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture_2_of_12_c608772d-88cf-43ba-8f5c-580a76a33234.jpg?v=1781016311","url":"https:\/\/homediyer.com\/de\/products\/25mm-heat-shrink-tubing-2-1-electrical-cable-wire-wrap","provider":"HomeDIYer","version":"1.0","type":"link"}