{"product_id":"5-1-heat-shrink-tubing-set-waterproof-dual-wall","title":"5:1 Heat Shrink Tubing Set – Waterproof Dual-Wall Insulation Sleeve Kit","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"hdiy-desc\"\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003e5:1 Heat Shrink Tubing Set — Waterproof Dual-Wall Wire Insulation for Reliable Connections\u003c\/h2\u003e\n\u003cp\u003eLoose wire splices and exposed connectors are one of the most common causes of electrical failures in automotive, marine, and outdoor DIY projects. Whether you're chasing an intermittent short in your truck's wiring harness or sealing a junction box on a dock, you need insulation that stays put — even when moisture, vibration, and UV exposure are working against you. This 5:1 heat shrink tubing set is built for exactly those situations, giving hobbyists, mechanics, and electricians a dependable solution for waterproof wire insulation.\u003c\/p\u003e\n\u003cp\u003eEach set includes an assortment of dual-wall heat shrink tubes in multiple diameters, available in 164, 328, or 492-piece counts packaged in either a resealable bag or an organized storage box. The tubes feature a 5:1 shrink ratio — meaning the expanded tube shrinks down to one-fifth of its original diameter — and an inner adhesive lining that melts during heating to form a moisture-resistant seal. Diameter sizes in the assortment typically range from small-gauge signal wire coverage up to heavier connector sleeves; see variant options for the exact size breakdown.\u003c\/p\u003e\n\u003cp\u003eThese dual-wall adhesive-lined tubes are well suited for automotive wiring repairs, marine electrical connections, trailer harness protection, and outdoor junction sealing. The wide shrink ratio makes them especially useful when working with connectors, terminals, or irregular shapes where standard 2:1 tubing falls short — a common search for anyone looking for \u003cem\u003ewaterproof wire connector covers\u003c\/em\u003e or \u003cem\u003eadhesive heat shrink for marine wiring\u003c\/em\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-compat\"\u003e\n\u003cspan class=\"hdiy-compat-icon\"\u003e🔌\u003c\/span\u003e \u003cstrong\u003eCompatibility:\u003c\/strong\u003e Works with copper and aluminum conductors. Suitable for 12V automotive, marine, RV, and low-voltage outdoor electrical applications. Confirm wire gauge and connector diameter against variant size chart before ordering.\u003c\/div\u003e\n\u003ch2\u003e✅ Key Features of These 5:1 Dual-Wall 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\u003eAdhesive Inner Wall for Waterproof Sealing\u003c\/strong\u003e — The dual-wall construction includes a hot-melt adhesive lining that flows into gaps during shrinking, creating a moisture-resistant barrier ideal for outdoor and marine wire insulation.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003e5:1 Shrink Ratio for Versatile Fit\u003c\/strong\u003e — A 5:1 ratio gives you far more coverage flexibility than standard 2:1 tubing, making these sleeves effective for connectors, terminals, and irregular wire bundles where a tight recovered fit matters.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🎯\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eMulti-Diameter Assortment in One Kit\u003c\/strong\u003e — Instead of buying individual spools, this set bundles multiple diameter sizes so you have the right tube on hand for everything from thin signal wires to heavier gauge automotive cables.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔥\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eLow Activation Temperature\u003c\/strong\u003e — Tubes typically begin shrinking at around 90°C (194°F), so a standard heat gun activates them quickly and evenly without scorching nearby components.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📦\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eBag or Box Packaging Options\u003c\/strong\u003e — Choose a resealable bag for portable toolbox storage or a labeled storage box to keep diameters sorted and accessible in a workshop environment.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚡\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eElectrical Insulation with Mechanical Protection\u003c\/strong\u003e — Beyond moisture sealing, the recovered tubing adds a layer of abrasion resistance and strain relief around splices and connector entries, reducing the risk of chafing failures in high-vibration environments.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e📐 Technical Specifications — 5:1 Dual-Wall Heat Shrink Tubing Kit\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct Type\u003c\/th\u003e\n\u003ctd\u003eDual-Wall Adhesive-Lined Heat Shrink Tubing Assortment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShrink Ratio\u003c\/th\u003e\n\u003ctd\u003e5:1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWall Construction\u003c\/th\u003e\n\u003ctd\u003eDual-wall (outer polyolefin + inner hot-melt adhesive)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWaterproof Rating\u003c\/th\u003e\n\u003ctd\u003eMoisture-resistant seal when fully recovered (adhesive-lined)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDiameter Range\u003c\/th\u003e\n\u003ctd\u003eSee variant options (assorted sizes per set)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePiece Count Options\u003c\/th\u003e\n\u003ctd\u003e164 pieces \/ 328 pieces \/ 492 pieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePackaging Options\u003c\/th\u003e\n\u003ctd\u003eResealable Bag or Labeled Storage Box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTypical Piece Length\u003c\/th\u003e\n\u003ctd\u003eGenerally ~100mm (≈4\") per piece — contact us to confirm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eActivation Temperature\u003c\/th\u003e\n\u003ctd\u003eTypically 90–120°C (194–248°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompatible Conductors\u003c\/th\u003e\n\u003ctd\u003eCopper, aluminum (insulated wire and cable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTypical Applications\u003c\/th\u003e\n\u003ctd\u003eAutomotive, marine, RV, outdoor low-voltage wiring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eColor\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCountry of Origin\u003c\/th\u003e\n\u003ctd\u003eContact us to confirm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-note\"\u003e\n\u003cspan class=\"hdiy-note-icon\"\u003e⚠️\u003c\/span\u003e \u003cstrong\u003eSpec Note:\u003c\/strong\u003e Exact diameter sizes and piece distribution per set vary by variant. Review the size chart in the product images or contact us before ordering if you need a specific diameter confirmed.\u003c\/div\u003e\n\u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-faq\"\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I choose the right diameter for my wires?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eMeasure the outer diameter of the wire or connector you need to cover, then select a tube whose recovered (post-shrink) inner diameter is slightly smaller than that measurement. With a 5:1 shrink ratio, a tube that starts at 12mm (≈1\/2\") will recover to roughly 2.4mm (≈3\/32\"), giving you a wide working range. When in doubt, size up one step.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs this heat shrink tubing truly waterproof?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. These are dual-wall tubes with an inner adhesive lining that melts and flows during shrinking to create a moisture-resistant seal around the wire or connector. They are generally suitable for outdoor, marine, and automotive wiring exposed to rain, humidity, and splashing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat temperature is needed to shrink these tubes?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eTypically a heat gun set to around 90–120°C (194–248°F) is sufficient to activate shrinking. Avoid open flames when possible, as uneven heat can cause bubbling or uneven shrinkage.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use these outdoors or in marine environments?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. The adhesive inner wall creates a seal that resists moisture ingress, making these tubes generally suitable for outdoor electrical connections, boat wiring, and automotive applications. For prolonged saltwater submersion, confirm the specific tube rating with us.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat wire gauges are compatible with this kit?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThe kit typically covers a range of wire gauges from small signal wires up to heavier automotive cables. Because the set includes multiple diameter sizes, it is generally compatible with AWG 8 through AWG 28 wiring. See variant options for the exact size assortment included.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between the Bag and Box packaging options?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eBoth contain the same tubing assortment. The Bag option is a resealable poly bag suited for occasional use or toolbox storage, while the Box option comes in a labeled storage box that keeps sizes organized and is ideal for workshops or frequent use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow long are the individual tubing pieces in the set?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eIndividual pieces are typically pre-cut to a standard length — generally around 100mm (≈4\") each — making them ready to use without additional cutting for most connector and splice applications. Contact us to confirm exact cut lengths for your set size.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your set size and packaging above, then add to cart — ships from our US warehouse.\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HomeDIYer","offers":[{"title":"Bag [164 pieces]","offer_id":52330080731410,"sku":"LXXSZSYXDZ00301x1","price":14.39,"currency_code":"USD","in_stock":true},{"title":"Bag [328 pieces]","offer_id":52330080764178,"sku":"LXXSZSYXDZ00302x1","price":17.07,"currency_code":"USD","in_stock":true},{"title":"Bag [492 pieces]","offer_id":52330080796946,"sku":"LXXSZSYXDZ00303x1","price":19.76,"currency_code":"USD","in_stock":true},{"title":"Box [164 pieces]","offer_id":52330080829714,"sku":"LXXSZSYXDZ00304x1","price":17.07,"currency_code":"USD","in_stock":true},{"title":"Box [328 pieces]","offer_id":52330080862482,"sku":"LXXSZSYXDZ00305x1","price":21.54,"currency_code":"USD","in_stock":true},{"title":"Box [492 pieces]","offer_id":52330080895250,"sku":"LXXSZSYXDZ00306x1","price":26.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Main-05_80f6af6a-cfa4-4cf3-a05c-273aae6d99da.jpg?v=1780715970","url":"https:\/\/homediyer.com\/de\/products\/5-1-heat-shrink-tubing-set-waterproof-dual-wall","provider":"HomeDIYer","version":"1.0","type":"link"}