{"product_id":"dual-wall-adhesive-heat-shrink-tube-4-20mm-cable-protection-tubing","title":"Dual Wall Adhesive Heat Shrink Tube 4–20mm | Cable Protection","description":"\n\u003ch2\u003eDual Wall Adhesive-Lined Heat Shrink Tubing – Sizes 4\/6\/8\/12\/16\/20mm\u003c\/h2\u003e\n\u003cp\u003eProtect your wires, cables, and electrical connections with professional-grade \u003cstrong\u003edual wall heat shrink tubing\u003c\/strong\u003e. Featuring an inner adhesive glue lining that melts and flows when heat is applied, this tubing creates a watertight, airtight seal around cables — delivering superior insulation, strain relief, and long-lasting protection against moisture, corrosion, and mechanical wear.\u003c\/p\u003e\n\n\u003cp\u003eWith a \u003cstrong\u003e4:1 shrink ratio\u003c\/strong\u003e, this polyethylene (PE) heat shrink tube accommodates a wide range of wire diameters across six sizes (4mm, 6mm, 8mm, 12mm, 16mm, and 20mm), making it ideal for automotive wiring, marine applications, outdoor electrical work, and DIY electronics projects.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual Wall Construction:\u003c\/strong\u003e Outer PE layer for structural integrity; inner hot-melt adhesive for a sealed, waterproof bond\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e4:1 Shrink Ratio:\u003c\/strong\u003e Fits a wide range of wire and cable diameters with a secure, snug finish\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSix Size Options:\u003c\/strong\u003e 4mm, 6mm, 8mm, 12mm, 16mm, and 20mm to suit virtually any cable\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eElectrical Insulation:\u003c\/strong\u003e Provides reliable electrical insulation to protect against short circuits\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMoisture \u0026amp; Corrosion Resistant:\u003c\/strong\u003e Adhesive lining seals out water, oils, and environmental contaminants\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStrain Relief:\u003c\/strong\u003e Reduces mechanical stress at connection points and wire terminals\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEasy Application:\u003c\/strong\u003e Simply cut to length, slide over the cable, and apply heat with a heat gun\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Durable Polyethylene (PE)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIdeal Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eAutomotive \u0026amp; marine wiring harnesses\u003c\/li\u003e\n  \u003cli\u003eOutdoor and underground cable splices\u003c\/li\u003e\n  \u003cli\u003eElectrical panel and junction box wiring\u003c\/li\u003e\n  \u003cli\u003eDIY electronics repairs and modifications\u003c\/li\u003e\n  \u003cli\u003eConnector and terminal waterproofing\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)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDual Wall, Adhesive-Lined Heat Shrink\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 Sizes\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\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMade in China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eRelated Products\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-channel-scr-solid-state-relay-switch-module-dc3-24v-40a-optocoupler\"\u003e1-Channel SCR Solid State Relay Module DC3-24V 40A Optocoupler\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-8m-displayport-to-hdmi-cable-4k-dp-adapter-pc-hdtv-projector\"\u003e1.8M DisplayPort to HDMI Cable 4K – DP Adapter for PC \u0026amp; TV\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/10-pack-12v-3-pin-pc-fan-power-extension-cable-26cm-cpu-gpu-cooler\"\u003e10-Pack 12V 3-Pin PC Fan Extension Cable 26cm – CPU GPU Cooler\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor more information on electrical wiring 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 is dual wall heat shrink tubing and how does it differ from single wall tubing?\u003c\/h4\u003e\n\u003cp\u003eA: Dual wall heat shrink tubing has two layers — a tough outer PE layer and an inner hot-melt adhesive layer. When heat is applied, the outer layer shrinks while the inner adhesive melts and flows around the cable, creating a waterproof, airtight seal. Single wall tubing only shrinks without the adhesive bond, making dual wall tubing far superior for outdoor, marine, and moisture-exposed applications.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What shrink ratio does this heat shrink tubing have?\u003c\/h4\u003e\n\u003cp\u003eA: This dual wall heat shrink tube features a 4:1 shrink ratio, meaning it can shrink down to one-quarter of its original diameter. This allows it to accommodate a wide range of cable and wire sizes, providing a tight, secure fit.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What sizes are available and which should I choose?\u003c\/h4\u003e\n\u003cp\u003eA: This tubing is available in six inner diameter sizes: 4mm, 6mm, 8mm, 12mm, 16mm, and 20mm. Choose a size that is slightly larger than the diameter of the cable or connector you need to cover so the tubing can slide on easily before shrinking to a snug fit.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How do I apply dual wall heat shrink tubing?\u003c\/h4\u003e\n\u003cp\u003eA: Cut the tube to the desired length, slide it over the wire or cable, and apply even heat using a heat gun or similar tool. The outer layer will shrink and the inner adhesive will melt and flow to create a sealed connection. Avoid open flames, as they can damage the tubing.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is dual wall heat shrink tubing and how does it differ from single wall tubing?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Dual wall heat shrink tubing has two layers — a tough outer PE layer and an inner hot-melt adhesive layer. When heat is applied, the outer layer shrinks while the inner adhesive melts and flows around the cable, creating a waterproof, airtight seal. Single wall tubing only shrinks without the adhesive bond, making dual wall tubing far superior for outdoor, marine, and moisture-exposed applications.\"}}, {\"@type\": \"Question\", \"name\": \"What shrink ratio does this heat shrink tubing have?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This dual wall heat shrink tube features a 4:1 shrink ratio, meaning it can shrink down to one-quarter of its original diameter. This allows it to accommodate a wide range of cable and wire sizes, providing a tight, secure fit.\"}}, {\"@type\": \"Question\", \"name\": \"What sizes are available and which should I choose?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This tubing is available in six inner diameter sizes: 4mm, 6mm, 8mm, 12mm, 16mm, and 20mm. Choose a size that is slightly larger than the diameter of the cable or connector you need to cover so the tubing can slide on easily before shrinking to a snug fit.\"}}, {\"@type\": \"Question\", \"name\": \"How do I apply dual wall heat shrink tubing?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Cut the tube to the desired length, slide it over the wire or cable, and apply even heat using a heat gun or similar tool. The outer layer will shrink and the inner adhesive will melt and flow to create a sealed connection. Avoid open flames, as they can damage the tubing.\"}}]}\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:\/\/oasis-select.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Electronics \u0026 Tech\", \"item\": \"https:\/\/oasis-select.com\/collections\/electronics-tech\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"Dual Wall Adhesive Heat Shrink Tube 4–20mm | Cable Protection\", \"item\": \"https:\/\/oasis-select.com\/products\/dual-wall-adhesive-heat-shrink-tube-4-20mm-cable-protection-tubing\"}]}\u003c\/script\u003e","brand":"Oasis Select","offers":[{"title":"black \/ 20 mm","offer_id":47727664660585,"sku":"100006028:19952726;14:193","price":10.01,"currency_code":"USD","in_stock":true},{"title":"black \/ 16mm","offer_id":47727664693353,"sku":"100006028:3269250#16mm;14:193","price":11.58,"currency_code":"USD","in_stock":true},{"title":"black \/ 6mm","offer_id":47727664726121,"sku":"100006028:100016940;14:193","price":9.98,"currency_code":"USD","in_stock":true},{"title":"black \/ 8mm","offer_id":47727664758889,"sku":"100006028:100016941;14:193","price":8.74,"currency_code":"USD","in_stock":true},{"title":"black \/ 12mm","offer_id":47727664791657,"sku":"100006028:100016944;14:193","price":9.98,"currency_code":"USD","in_stock":true},{"title":"black \/ 4mm","offer_id":47727664824425,"sku":"100006028:201336457;14:193","price":8.62,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/7931\/3257\/files\/S24abe0c4ee714262b0982694e3181872k_98634adc-3b78-4201-8165-79868a702bb5.webp?v=1782670506","url":"https:\/\/oasis-select.com\/products\/dual-wall-adhesive-heat-shrink-tube-4-20mm-cable-protection-tubing","provider":"Oasis Select","version":"1.0","type":"link"}