{"product_id":"4-1-white-adhesive-glue-lined-heat-shrink-tubing-waterproof","title":"4:1 White Adhesive Glue-Lined Heat Shrink Tubing – Waterproof Sleeving","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"hdiy-desc\"\u003e\n\u003c!-- ① OVERVIEW --\u003e\n\u003ch2\u003e4:1 White Adhesive Glue-Lined Heat Shrink Tubing — Waterproof Wire Sleeving for Demanding Connections\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003cp\u003eExposed wire splices, corroded connectors, and failed solder joints are among the most common causes of electrical failures in boats, vehicles, and outdoor installations. Electricians, marine technicians, and serious DIYers who need a reliable, long-lasting seal — not just a cover — reach for dual-wall, glue-lined heat shrink tubing. Standard single-wall tubing simply cannot match the waterproof bond that an adhesive inner lining provides.\u003c\/p\u003e\n\u003cp\u003eEach piece in this listing is a dual-wall heat shrink tube with a polyolefin outer layer and a hot-melt adhesive inner lining. The 4:1 shrink ratio means the tubing shrinks to approximately one-quarter of its supplied diameter, conforming tightly around irregular shapes and connector bodies. Available diameters are Φ4mm (5\/32\"), Φ6mm (15\/64\"), Φ8mm (5\/16\"), Φ12mm (15\/32\"), and Φ16mm (5\/8\"), all cut to a uniform 200mm (≈7.9\") length. Order in packs of 1, 5, or 10 pieces per size.\u003c\/p\u003e\n\u003cp\u003eTypical use cases include waterproofing marine wire harness splices where salt-air corrosion is a concern, sealing automotive battery cable terminals and trailer wiring connectors, and protecting outdoor low-voltage landscape lighting joints from moisture intrusion. The white finish also makes it easy to label or identify circuits in panel wiring and control cabinet applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- ② COMPATIBILITY BAR --\u003e\n\u003cdiv class=\"hdiy-compat\"\u003e\n\u003cspan class=\"hdiy-compat-icon\"\u003e🔌\u003c\/span\u003e \u003cstrong\u003eCompatibility:\u003c\/strong\u003e Fits wire bundles and connectors with an outer diameter up to the listed Φ size. Verify your connector OD before selecting a variant — the tubing shrinks to approximately 25% of the supplied inner diameter. Works with standard heat guns; no special tooling required.\u003c\/div\u003e\n\u003c!-- ③ KEY FEATURES --\u003e\n\u003ch2\u003e✅ Key Features of These 4:1 Glue-Lined 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\u003eWaterproof Adhesive Inner Lining\u003c\/strong\u003e — The hot-melt glue layer flows when heated, filling gaps around wire strands and connector bodies to create a moisture-resistant seal that standard single-wall tubing cannot achieve.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003e4:1 Shrink Ratio\u003c\/strong\u003e — Shrinks to approximately 25% of its original diameter, making it suitable for connectors with flanges, stepped profiles, and irregular wire bundle shapes where 2:1 tubing would leave gaps.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🌞\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eUV- and Weather-Resistant Outer Wall\u003c\/strong\u003e — The polyolefin outer layer is generally resistant to UV radiation, mild chemicals, and temperature cycling, making it a practical choice for outdoor wiring and marine wire harness repair.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚡\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eElectrical Insulation\u003c\/strong\u003e — Provides a dielectric barrier over splices, solder joints, and bare terminals, reducing the risk of short circuits in automotive, RV, and low-voltage DC wiring systems.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📏\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eFive Diameter Options in One Listing\u003c\/strong\u003e — Φ4, Φ6, Φ8, Φ12, and Φ16mm cover a broad range from small signal wires up to heavy battery cables, so you can stock the sizes you actually need without buying a mixed assortment.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e✂️\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003ePre-Cut 200mm Lengths\u003c\/strong\u003e — Each piece is cut to 200mm (≈7.9\"), long enough to cover most connector bodies and wire splices with overlap on both ends, and easy to trim shorter if needed.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- ④ TECHNICAL SPECIFICATIONS --\u003e\n\u003ch2\u003e📐 Technical Specifications — 4:1 Dual-Wall Adhesive Heat Shrink Tubing\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eConstruction\u003c\/th\u003e\n\u003ctd\u003eDual-wall: polyolefin outer layer + hot-melt adhesive inner lining\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShrink Ratio\u003c\/th\u003e\n\u003ctd\u003e4:1 (shrinks to approximately 25% of supplied inner diameter)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eColor\u003c\/th\u003e\n\u003ctd\u003eWhite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAvailable Diameters (supplied)\u003c\/th\u003e\n\u003ctd\u003eΦ4mm (5\/32\"), Φ6mm (15\/64\"), Φ8mm (5\/16\"), Φ12mm (15\/32\"), Φ16mm (5\/8\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLength per Piece\u003c\/th\u003e\n\u003ctd\u003e200mm (≈7.9\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePack Sizes\u003c\/th\u003e\n\u003ctd\u003e1 pc, 5 pcs, 10 pcs (select via QTY option)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShrink Temperature (outer wall)\u003c\/th\u003e\n\u003ctd\u003eTypically 120–135°C (248–275°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAdhesive Activation Temperature\u003c\/th\u003e\n\u003ctd\u003eTypically ≈150°C (302°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 for specific applications\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eVoltage Rating\u003c\/th\u003e\n\u003ctd\u003eSee variant options \/ Contact us to confirm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRecommended Tool\u003c\/th\u003e\n\u003ctd\u003eHeat gun (open flame usable with caution)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTypical Applications\u003c\/th\u003e\n\u003ctd\u003eMarine wiring, automotive harness repair, outdoor electrical connections, panel wiring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c!-- ⑤ FAQ --\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 wire or connector?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eMeasure the outer diameter of the wire bundle or connector before shrinking. With a 4:1 ratio, the tubing shrinks to one-quarter of its supplied diameter. For example, Φ8mm tubing will shrink down to approximately 2mm. Choose a size where the supplied diameter is at least 1.1–1.5× the diameter of the object you are covering to ensure a snug, sealed fit. When in doubt, size up — you can always apply more heat to achieve a tighter wrap, but you cannot stretch tubing that is too small.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat does the 4:1 shrink ratio mean, and why does it matter?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eA 4:1 shrink ratio means the tubing will shrink to approximately 25% of its original inner diameter when heat is applied. This is significantly more than standard 2:1 tubing, making it suitable for irregular shapes, connectors with flanges, and applications where a very tight seal is needed. For a straight wire splice, 2:1 tubing may be sufficient; for a bulky connector body or a stepped profile, 4:1 is generally the better choice.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs this tubing strong enough for high-load or high-vibration environments?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThe dual-wall construction — a polyolefin outer layer combined with a thermoplastic adhesive inner lining — generally provides good mechanical protection and resistance to abrasion. The adhesive layer bonds to the substrate, adding strain relief that helps withstand vibration typically encountered in automotive and marine applications. For extreme mechanical stress (e.g., constant flexing), consider adding a secondary mechanical clamp or conduit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use this tubing outdoors or in marine environments?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. The glue-lined construction creates a watertight seal around the wire or connector, and the polyolefin outer wall generally offers good resistance to UV exposure, moisture, and mild chemicals. It is commonly used in marine wiring, outdoor lighting, and irrigation control systems. For submersion or continuous water exposure, verify the specific IP rating or contact us to confirm suitability for your application.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat temperature is needed to shrink this tubing, and what tools can I use?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eAdhesive-lined polyolefin heat shrink tubing typically activates at around 120–135°C (248–275°F) and the adhesive flows fully at approximately 150°C (302°F). A heat gun is the recommended tool — move it slowly and evenly along the tubing from the center outward to avoid trapping air bubbles. An open flame such as a lighter can be used with caution but may scorch the tubing or cause uneven shrinkage.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs this tubing compatible with standard wire gauges and connector types?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThe five diameter options (Φ4, Φ6, Φ8, Φ12, Φ16mm) cover a wide range of wire gauges from approximately AWG 20 up to AWG 4\/0 and common connector bodies including Anderson Powerpole, Deutsch DT, and ring terminals. Always verify the supplied inner diameter against your specific connector or wire bundle before ordering. If you are unsure, contact us with your connector model number and we can advise.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow many pieces do I need, and can I mix sizes in one order?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eEach variant is sold in packs of 1, 5, or 10 pieces, all cut to 200mm (≈7.9\") length. Each size must be ordered separately — select your diameter and quantity from the variant options above. If you need multiple diameters, simply add each size to your cart as a separate line item.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c!-- ⑥ CTA BAR --\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your \u003cstrong\u003ediameter and quantity\u003c\/strong\u003e above, then add to cart — ships from our US warehouse.\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HomeDIYer","offers":[{"title":"Φ4*200mm \/ 1","offer_id":52329672868114,"sku":"GLFBLFFGZYYSG0580x1","price":5.37,"currency_code":"USD","in_stock":true},{"title":"Φ6*200mm \/ 1","offer_id":52329672900882,"sku":"GLFBLFFGZYYSG0581x1","price":5.55,"currency_code":"USD","in_stock":true},{"title":"Φ8*200mm \/ 1","offer_id":52329672933650,"sku":"GLFBLFFGZYYSG0582x1","price":5.67,"currency_code":"USD","in_stock":true},{"title":"Φ12*200mm \/ 1","offer_id":52329672966418,"sku":"GLFBLFFGZYYSG0583x1","price":6.16,"currency_code":"USD","in_stock":true},{"title":"Φ16*200mm \/ 1","offer_id":52329672999186,"sku":"GLFBLFFGZYYSG0584x1","price":6.76,"currency_code":"USD","in_stock":true},{"title":"Φ4*200mm \/ 5","offer_id":52329673031954,"sku":"GLFBLFFGZYYSG0580x5","price":6.87,"currency_code":"USD","in_stock":true},{"title":"Φ6*200mm \/ 5","offer_id":52329673064722,"sku":"GLFBLFFGZYYSG0581x5","price":8.06,"currency_code":"USD","in_stock":true},{"title":"Φ8*200mm \/ 5","offer_id":52329673097490,"sku":"GLFBLFFGZYYSG0582x5","price":8.85,"currency_code":"USD","in_stock":true},{"title":"Φ12*200mm \/ 5","offer_id":52329673130258,"sku":"GLFBLFFGZYYSG0583x5","price":11.07,"currency_code":"USD","in_stock":true},{"title":"Φ16*200mm \/ 5","offer_id":52329673163026,"sku":"GLFBLFFGZYYSG0584x5","price":15.87,"currency_code":"USD","in_stock":true},{"title":"Φ4*200mm \/ 10","offer_id":52329673195794,"sku":"GLFBLFFGZYYSG0580x10","price":8.85,"currency_code":"USD","in_stock":true},{"title":"Φ6*200mm \/ 10","offer_id":52329673228562,"sku":"GLFBLFFGZYYSG0581x10","price":11.07,"currency_code":"USD","in_stock":true},{"title":"Φ8*200mm \/ 10","offer_id":52329673261330,"sku":"GLFBLFFGZYYSG0582x10","price":13.46,"currency_code":"USD","in_stock":true},{"title":"Φ12*200mm \/ 10","offer_id":52329673294098,"sku":"GLFBLFFGZYYSG0583x10","price":20.06,"currency_code":"USD","in_stock":true},{"title":"Φ16*200mm \/ 10","offer_id":52329673326866,"sku":"GLFBLFFGZYYSG0584x10","price":29.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/4_1WhiteAdhesiveHeatshrinkWaterproofHeatShrinkGlueLinedTubingSleeving-Picture1of1.jpg?v=1780556215","url":"https:\/\/homediyer.com\/products\/4-1-white-adhesive-glue-lined-heat-shrink-tubing-waterproof","provider":"HomeDIYer","version":"1.0","type":"link"}