{"product_id":"dual-wall-adhesive-heat-shrink-tubing-glue-4-1-ratio-cable-protection","title":"Dual Wall Adhesive Heat Shrink Tubing – 4:1 Ratio, 6 Sizes","description":"\n\u003ch2\u003eDual Wall Adhesive Heat Shrink Tubing – Professional Cable Protection\u003c\/h2\u003e\n\u003cp\u003eKeep your wiring neat, secure, and fully insulated with this \u003cstrong\u003eDual Wall Heat Shrink Tubing with Adhesive Glue Lining\u003c\/strong\u003e. Engineered from high-quality polyethylene (PE) with a 4:1 shrink ratio, this tubing forms a waterproof, airtight seal around cables, connectors, and wire splices — making it an essential addition to any electrical or DIY toolkit.\u003c\/p\u003e\n\u003cp\u003eAvailable in six versatile diameters — \u003cstrong\u003e4mm, 6mm, 8mm, 12mm, 16mm, and 20mm\u003c\/strong\u003e — so you can protect everything from delicate sensor wires to heavy-duty power cables.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e4:1 Shrink Ratio:\u003c\/strong\u003e Shrinks to one-quarter of its original diameter for a snug, professional fit on a wide range of cable sizes.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual Wall Construction:\u003c\/strong\u003e Outer PE shell provides mechanical protection and electrical insulation; inner hot-melt adhesive layer bonds tightly for a waterproof, moisture-resistant seal.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSix Size Options:\u003c\/strong\u003e 4mm, 6mm, 8mm, 12mm, 16mm, and 20mm supply diameter — suitable for thin signal wires up to thick power cables and conduit bundles.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eElectrical Insulation:\u003c\/strong\u003e Keeps bare connections safely insulated to prevent short circuits, corrosion, and accidental contact.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeat Activated:\u003c\/strong\u003e Simply apply a heat gun or torch evenly along the tube — no special tools required.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVersatile Use:\u003c\/strong\u003e Ideal for automotive wiring, marine and outdoor cabling, home electrical repairs, robotics, bicycle wiring, and workshop projects.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurable PE Material:\u003c\/strong\u003e Resistant to oils, chemicals, abrasion, and UV exposure for long-lasting protection in demanding environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePolyethylene (PE) – Dual Wall with Hot-Melt Adhesive\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShrink Ratio\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4:1\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAvailable Diameters\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4mm, 6mm, 8mm, 12mm, 16mm, 20mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHeat Shrinkable Tubing\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInner Lining\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHot-Melt Adhesive Glue\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eElectrical Insulation, Cable Protection, Waterproofing\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePerfect For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eAutomotive and motorcycle wiring harnesses\u003c\/li\u003e\n  \u003cli\u003eMarine, boat, and outdoor electrical cable protection\u003c\/li\u003e\n  \u003cli\u003eHome electrical repairs and DIY wiring projects\u003c\/li\u003e\n  \u003cli\u003eIndustrial and workshop cable management\u003c\/li\u003e\n  \u003cli\u003eRobotics, electronics, and circuit board connections\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-pin-pre-wired-glow-plug-connector-vw-audi-bmw-fiat-ford-55200755\"\u003e1-Pin Pre-Wired Glow Plug Connector | VW Audi BMW Fiat Ford\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-4-inch-npt-nickel-plated-brass-air-compressor-tank-fill-valve\"\u003e1\/4\" NPT Nickel Plated Brass Air Compressor Tank Fill Valve\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/hex-shank-wire-twister-drill-attachment-rebar-tie-tool\"\u003e1\/4\" Hex Shank Wire Twister Drill Attachment | Rebar Tie Tool\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor more information on electrical safety standards and best practices, visit the \u003ca href=\"https:\/\/www.osha.gov\/electrical\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eOSHA Electrical Safety Guidelines\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What does the 4:1 shrink ratio mean for dual wall heat shrink tubing?\u003c\/h4\u003e\n\u003cp\u003eA: A 4:1 shrink ratio means the tubing will shrink to one-quarter of its original inner diameter when heat is applied. This makes it ideal for covering irregular shapes, stepped connections, or bundled cables where a standard 2:1 ratio tube may not achieve a tight enough seal.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How do I apply dual wall adhesive heat shrink tubing?\u003c\/h4\u003e\n\u003cp\u003eA: Slide the appropriately sized tubing over the cable or connector you want to protect. Using a heat gun, apply even heat along the length of the tube, working from the centre outward. The outer PE layer will shrink while the inner adhesive layer melts and flows to create a waterproof, airtight bond around the cable.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Which size heat shrink tube should I choose?\u003c\/h4\u003e\n\u003cp\u003eA: Select a tube whose pre-shrink inner diameter is slightly larger than the cable or connector you need to cover. For example, for a 5mm cable, the 8mm tube would be appropriate. After shrinking at 4:1, it will form a tight, secure seal.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this heat shrink tubing suitable for outdoor and marine use?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The dual wall construction with a hot-melt adhesive inner lining creates a moisture-resistant, waterproof seal, making it well suited for outdoor, automotive, marine, and other environments exposed to moisture, oils, and chemicals.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What does the 4:1 shrink ratio mean for dual wall heat shrink tubing?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"A 4:1 shrink ratio means the tubing will shrink to one-quarter of its original inner diameter when heat is applied. This makes it ideal for covering irregular shapes, stepped connections, or bundled cables where a standard 2:1 ratio tube may not achieve a tight enough seal.\"}}, {\"@type\": \"Question\", \"name\": \"How do I apply dual wall adhesive heat shrink tubing?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Slide the appropriately sized tubing over the cable or connector you want to protect. Using a heat gun, apply even heat along the length of the tube, working from the centre outward. The outer PE layer will shrink while the inner adhesive layer melts and flows to create a waterproof, airtight bond around the cable.\"}}, {\"@type\": \"Question\", \"name\": \"Which size heat shrink tube should I choose?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Select a tube whose pre-shrink inner diameter is slightly larger than the cable or connector you need to cover. For example, for a 5mm cable, the 8mm tube would be appropriate. After shrinking at 4:1, it will form a tight, secure seal.\"}}, {\"@type\": \"Question\", \"name\": \"Is this heat shrink tubing suitable for outdoor and marine use?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. The dual wall construction with a hot-melt adhesive inner lining creates a moisture-resistant, waterproof seal, making it well suited for outdoor, automotive, marine, and other environments exposed to moisture, oils, and chemicals.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/0i45ne-c8.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Fasteners \u0026 Electrical\", \"item\": \"https:\/\/0i45ne-c8.myshopify.com\/collections\/fasteners-electrical\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"Dual Wall Adhesive Heat Shrink Tubing – 4:1 Ratio, 6 Sizes\", \"item\": \"https:\/\/0i45ne-c8.myshopify.com\/products\/dual-wall-adhesive-heat-shrink-tubing-glue-4-1-ratio-cable-protection\"}]}\u003c\/script\u003e","brand":"Zpaxo","offers":[{"title":"black \/ 4mm","offer_id":54170637861174,"sku":"100006028:201336457;14:193","price":9.46,"currency_code":"USD","in_stock":false},{"title":"black \/ 20 mm","offer_id":54170637893942,"sku":"100006028:19952726;14:193","price":9.46,"currency_code":"USD","in_stock":false},{"title":"black \/ 8mm","offer_id":54170637926710,"sku":"100006028:100016941;14:193","price":9.46,"currency_code":"USD","in_stock":false},{"title":"black \/ 12mm","offer_id":54170637959478,"sku":"100006028:100016944;14:193","price":9.46,"currency_code":"USD","in_stock":false},{"title":"black \/ 16mm","offer_id":54170637992246,"sku":"100006028:3269250#16mm;14:193","price":9.46,"currency_code":"USD","in_stock":false},{"title":"black \/ 6mm","offer_id":54170638025014,"sku":"100006028:100016940;14:193","price":9.46,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0989\/7774\/3158\/files\/S111615f3489f4d2ab8cd86865bcc46f2t_f75b3238-5439-4e5d-b8bb-de9b3502575e.webp?v=1782840635","url":"https:\/\/0i45ne-c8.myshopify.com\/products\/dual-wall-adhesive-heat-shrink-tubing-glue-4-1-ratio-cable-protection","provider":"Zpaxo","version":"1.0","type":"link"}