{"product_id":"4-1-glue-lined-heat-shrink-tubing-6mm-waterproof","title":"4:1 Adhesive Glue Lined Heat Shrink Tubing 6mm – Waterproof Heatshrink Sleeving","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"hdiy-desc\"\u003e\n\u003ch2\u003e6mm Waterproof Heat Shrink Tubing — Adhesive Glue Lined, 4:1 Ratio for a Lasting Seal\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003cp\u003eExposed wire splices and bare connectors are a liability — moisture creeps in, corrosion sets in, and eventually connections fail at the worst possible moment. Whether you're a marine electrician, an automotive enthusiast, or a DIYer tackling outdoor wiring, you need a heat shrink solution that does more than just cover a wire. This 4:1 adhesive glue lined heat shrink tubing delivers a fully waterproof, mechanically secure seal that standard 2:1 tubing simply cannot match.\u003c\/p\u003e\n\u003cp\u003eEach piece is cut from a continuous roll of 6mm (≈15\/64\") inner diameter, dual-wall heat shrink tubing with a hot-melt adhesive liner. Available in lengths of 1 Metre (≈3.3 ft), 2 Metre (≈6.6 ft), 5 Metre (≈16.4 ft), and 10 Metre (≈32.8 ft), and in five colors — Black, White, Red, Blue, and Transparent — so you can color-code circuits or match existing wiring. At a 4:1 shrink ratio, the tubing shrinks from 6mm down to approximately 2mm (≈5\/64\") ID, flowing adhesive into every gap for a watertight bond.\u003c\/p\u003e\n\u003cp\u003eIdeal for marine wiring harness repairs, automotive battery terminal insulation, trailer connector waterproofing, outdoor solar panel wiring, and any application where a standard heat shrink tube for electrical wiring would leave moisture pathways. The glue-lined construction also provides strain relief, reducing stress on solder joints and crimped connections in high-vibration environments.\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 Fits wire bundles and connectors up to approximately 5.5mm outer diameter. Suitable for AWG 8–12 single conductors (verify your cable OD before ordering). Works with standard heat guns; shrink temperature typically starts at 120°C (248°F).\u003c\/div\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 Liner\u003c\/strong\u003e — The inner hot-melt glue layer melts and flows around connectors and wire irregularities, creating a moisture-proof seal that blocks water ingress in marine and outdoor wiring applications.\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 from 6mm down to approximately 2mm ID, covering a wider range of cable sizes than standard 2:1 heat shrink tubing and conforming tightly to irregular shapes.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🎨\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003e5 Color Options\u003c\/strong\u003e — Available in Black, White, Red, Blue, and Transparent, making it easy to color-code automotive wiring, marine circuits, or multi-conductor harnesses at a glance.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📏\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eFlexible Length Selection\u003c\/strong\u003e — Choose from 1m, 2m, 5m, or 10m to match your project scale, from a single splice repair to a full wiring harness job, without buying more than you need.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔧\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eStrain Relief Built In\u003c\/strong\u003e — The dual-wall construction adds mechanical reinforcement around solder joints and crimped terminals, reducing fatigue failure in high-vibration environments like engine bays and trailer connections.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚡\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eElectrically Insulating\u003c\/strong\u003e — Provides reliable electrical insulation over repaired splices, bare conductors, and exposed terminals, suitable for low-voltage DC wiring in automotive, marine, and solar installations.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"hdiy-note\"\u003e\n\u003cspan class=\"hdiy-note-icon\"\u003e⚠️\u003c\/span\u003e \u003cstrong\u003eNote:\u003c\/strong\u003e Only one inner diameter (φ6mm) is currently available in this listing. If you need a different ID size, please contact us to confirm availability before ordering.\u003c\/div\u003e\n\u003ch2\u003e📐 Technical Specifications — 4:1 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\u003eInner Diameter (Before Shrink)\u003c\/th\u003e\n\u003ctd\u003e6mm (≈15\/64\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInner Diameter (After Shrink)\u003c\/th\u003e\n\u003ctd\u003eApproximately 2mm (≈5\/64\") at 4:1 ratio\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShrink Ratio\u003c\/th\u003e\n\u003ctd\u003e4:1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eConstruction\u003c\/th\u003e\n\u003ctd\u003eDual-wall: outer polyolefin sleeve + inner hot-melt adhesive liner\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShrink Temperature\u003c\/th\u003e\n\u003ctd\u003eTypically 120°C (248°F) onset; adhesive activates at approx. 150°C (302°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAvailable Colors\u003c\/th\u003e\n\u003ctd\u003eBlack, White, Red, 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\u003eApplication Method\u003c\/th\u003e\n\u003ctd\u003eHeat gun (recommended); avoid open flame for even shrinkage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTypical Use Cases\u003c\/th\u003e\n\u003ctd\u003eMarine wiring, automotive splices, battery terminals, outdoor\/solar wiring\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\u003eOperating Temperature Range\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\u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-faq\"\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat does 6mm refer to — the inner diameter before or after shrinking?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThe 6mm refers to the inner diameter \u003cstrong\u003ebefore shrinking\u003c\/strong\u003e. After applying heat, the tubing shrinks to approximately 2mm (≈5\/64\") inner diameter at a 4:1 ratio, forming a tight, waterproof seal around your wire or connector. Always select a size where your cable's outer diameter is comfortably smaller than 6mm to allow the tubing to slide on easily.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I choose the right length for my project?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eMeasure the total length of wire, splice, or connector you need to cover, then add at least 10–15% extra for overlap and trimming. For single repairs, 1 Metre is typically sufficient. For wiring harnesses or batch jobs, 5 Metre or 10 Metre rolls offer better value per metre. When in doubt, size up — unused tubing stores easily for future use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat temperature is needed to shrink this tubing?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThis tubing generally requires a shrink temperature of around 120°C (248°F), and the adhesive liner typically activates fully at around 150°C (302°F). A heat gun is strongly recommended over an open flame for even, controlled shrinkage. Move the heat gun slowly along the tubing from the center outward to avoid trapping air bubbles.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs this tubing suitable for outdoor and marine use?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. The glue-lined construction creates a moisture-proof seal that is well-suited for outdoor, marine, and automotive environments. The adhesive liner flows into gaps and around irregular shapes, blocking water ingress effectively. It is commonly used for marine wiring harness repairs, trailer connector waterproofing, and outdoor solar panel wiring connections.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat wire gauge or connector size fits inside 6mm ID tubing?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eA 6mm inner diameter before shrinking generally accommodates wire bundles or connectors up to approximately 5.5mm in outer diameter. This typically covers AWG 8–12 single conductors or small multi-wire bundles. Always verify your cable's outer diameter before ordering — if your cable is close to 6mm OD, the tubing may be difficult to slide on.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow is 4:1 shrink ratio different from standard 2:1 heat shrink?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eA 4:1 ratio means the tubing shrinks to one-quarter of its original diameter, compared to one-half for standard 2:1 tubing. This makes 4:1 glue-lined tubing far more versatile — it can cover a wider range of cable sizes and creates a much tighter, more durable seal, especially over connectors and irregular shapes. For waterproofing applications, 4:1 adhesive heat shrink is generally the preferred choice over standard 2:1 tubing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use this tubing on automotive wiring and battery terminals?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. This type of adhesive heat shrink tubing is commonly used on automotive wiring repairs, battery terminals, trailer connectors, and underhood splices. The glue liner provides strain relief and corrosion protection in high-vibration environments. It is also suitable for motorcycle wiring, RV electrical systems, and 12V\/24V DC marine circuits.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your color and length above, then add to cart — ships from our US warehouse.\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HomeDIYer","offers":[{"title":"Black \/ φ6mm \/ 1 Metre","offer_id":52330367615250,"sku":"GYWXWGLBZSJ000496x1","price":2.43,"currency_code":"USD","in_stock":true},{"title":"White \/ φ6mm \/ 1 Metre","offer_id":52330367648018,"sku":"GYWXWGLBZSJ000497x1","price":2.75,"currency_code":"USD","in_stock":true},{"title":"Red \/ φ6mm \/ 1 Metre","offer_id":52330367680786,"sku":"GYWXWGLBZSJ000498x1","price":2.75,"currency_code":"USD","in_stock":true},{"title":"Blue \/ φ6mm \/ 1 Metre","offer_id":52330367713554,"sku":"GYWXWGLBZSJ000499x1","price":2.75,"currency_code":"USD","in_stock":true},{"title":"Transparent \/ φ6mm \/ 1 Metre","offer_id":52330367746322,"sku":"GYWXWGLBZSJ000500x1","price":2.75,"currency_code":"USD","in_stock":true},{"title":"Black \/ φ6mm \/ 2 Metre","offer_id":52330367779090,"sku":"GYWXWGLBZSJ000496x2","price":3.44,"currency_code":"USD","in_stock":true},{"title":"White \/ φ6mm \/ 2 Metre","offer_id":52330367811858,"sku":"GYWXWGLBZSJ000497x2","price":3.9,"currency_code":"USD","in_stock":true},{"title":"Red \/ φ6mm \/ 2 Metre","offer_id":52330367844626,"sku":"GYWXWGLBZSJ000498x2","price":3.9,"currency_code":"USD","in_stock":true},{"title":"Blue \/ φ6mm \/ 2 Metre","offer_id":52330367877394,"sku":"GYWXWGLBZSJ000499x2","price":3.9,"currency_code":"USD","in_stock":true},{"title":"Transparent \/ φ6mm \/ 2 Metre","offer_id":52330367910162,"sku":"GYWXWGLBZSJ000500x2","price":3.9,"currency_code":"USD","in_stock":true},{"title":"Black \/ φ6mm \/ 5 Metre","offer_id":52330367942930,"sku":"GYWXWGLBZSJ000496x5","price":7.22,"currency_code":"USD","in_stock":true},{"title":"White \/ φ6mm \/ 5 Metre","offer_id":52330367975698,"sku":"GYWXWGLBZSJ000497x5","price":8.38,"currency_code":"USD","in_stock":true},{"title":"Red \/ φ6mm \/ 5 Metre","offer_id":52330368008466,"sku":"GYWXWGLBZSJ000498x5","price":8.38,"currency_code":"USD","in_stock":true},{"title":"Blue \/ φ6mm \/ 5 Metre","offer_id":52330368041234,"sku":"GYWXWGLBZSJ000499x5","price":8.38,"currency_code":"USD","in_stock":true},{"title":"Transparent \/ φ6mm \/ 5 Metre","offer_id":52330368074002,"sku":"GYWXWGLBZSJ000500x5","price":8.38,"currency_code":"USD","in_stock":true},{"title":"Black \/ φ6mm \/ 10 Metre","offer_id":52330368106770,"sku":"GYWXWGLBZSJ000496x10","price":13.71,"currency_code":"USD","in_stock":true},{"title":"White \/ φ6mm \/ 10 Metre","offer_id":52330368139538,"sku":"GYWXWGLBZSJ000497x10","price":16.02,"currency_code":"USD","in_stock":true},{"title":"Red \/ φ6mm \/ 10 Metre","offer_id":52330368172306,"sku":"GYWXWGLBZSJ000498x10","price":16.02,"currency_code":"USD","in_stock":true},{"title":"Blue \/ φ6mm \/ 10 Metre","offer_id":52330368205074,"sku":"GYWXWGLBZSJ000499x10","price":16.02,"currency_code":"USD","in_stock":true},{"title":"Transparent \/ φ6mm \/ 10 Metre","offer_id":52330368237842,"sku":"GYWXWGLBZSJ000500x10","price":16.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture1of12_9c1d39cf-b66c-43c0-83f1-abe68d40df8a.jpg?v=1780900403","url":"https:\/\/homediyer.com\/de\/products\/4-1-glue-lined-heat-shrink-tubing-6mm-waterproof","provider":"HomeDIYer","version":"1.0","type":"link"}