{"product_id":"heat-shrink-tubing-35mm-2-1-waterproof-cable-sleeving","title":"Non-Slip Heat Shrink Tubing 35mm – 2:1 Waterproof Cable Sleeving","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"hdiy-desc\"\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003e35mm Heat Shrink Tubing — Waterproof 2:1 Non-Slip Cable Sleeving for Automotive \u0026amp; DIY Wiring\u003c\/h2\u003e\n\u003cp\u003eExposed wire connections are one of the most common causes of electrical failures in vehicles, boats, and outdoor equipment. Whether you're a weekend DIYer repairing a wiring harness or a professional installer bundling cables in tight spaces, having reliable, waterproof cable sleeving makes the difference between a lasting repair and one that fails at the worst moment.\u003c\/p\u003e\n\u003cp\u003eEach piece is a 1 metre (≈39.4\") length of 35mm inner diameter heat shrink tubing with a 2:1 shrink ratio — meaning it shrinks down to approximately 17.5mm once heat is applied. The tubing features a non-slip outer texture and is available in five colors: Red, Purple, Green, Blue, and Black, making color-coded wiring organization straightforward.\u003c\/p\u003e\n\u003cp\u003eTypical use cases include automotive wiring harness protection, marine cable bundling in moisture-prone environments, and securing exposed connectors on power tools or garden equipment — all situations where waterproof heat shrink sleeving for car wiring is essential.\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 cable bundles and connectors with an outer diameter up to approximately 34mm. After shrinking (2:1 ratio), conforms tightly to cables down to ~17mm. Suitable for standard automotive, marine, and general-purpose wiring applications.\u003c\/div\u003e\n\u003ch2\u003e✅ Key Features of These 35mm Heat Shrink Tubing Sleeves\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 Seal\u003c\/strong\u003e — Shrinks to form a moisture-resistant barrier, protecting wire splices and connectors from water ingress in automotive and outdoor wiring repairs.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔥\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003e2:1 Shrink Ratio\u003c\/strong\u003e — Reliable 2:1 ratio means the 35mm tubing reduces to roughly 17.5mm, creating a firm, uniform fit around cables and terminals without gaps.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e✋\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eNon-Slip Outer Texture\u003c\/strong\u003e — The textured outer surface improves grip on finished sleeves, useful for tool handles, cable management, and anywhere a secure hold matters.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🎨\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003e5-Color Selection\u003c\/strong\u003e — Available in Red, Purple, Green, Blue, and Black for color-coded cable identification across complex wiring harnesses and multi-circuit installations.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📏\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eGenerous 1-Metre Length\u003c\/strong\u003e — Each piece measures 1 metre (≈39.4\"), giving you enough material to cover multiple connection points or one longer cable run per unit ordered.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚡\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eFlexible After Shrinking\u003c\/strong\u003e — Retains flexibility once cooled, so it won't crack or stiffen in vibration-heavy environments like engine bays or marine bilge areas.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e📐 Technical Specifications — 35mm 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\u003e35mm (≈1-3\/8\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInner Diameter (After Shrink)\u003c\/th\u003e\n\u003ctd\u003e~17.5mm (≈11\/16\") — based on 2:1 ratio\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShrink Ratio\u003c\/th\u003e\n\u003ctd\u003e2:1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLength per Piece\u003c\/th\u003e\n\u003ctd\u003e1 metre (≈39.4\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAvailable Colors\u003c\/th\u003e\n\u003ctd\u003eRed, Purple, Green, Blue, Black\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOuter Texture\u003c\/th\u003e\n\u003ctd\u003eNon-slip ribbed surface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWaterproof\u003c\/th\u003e\n\u003ctd\u003eYes (when fully shrunk)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRecommended Activation Tool\u003c\/th\u003e\n\u003ctd\u003eHeat gun (open flame not recommended)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTypical Activation Temperature\u003c\/th\u003e\n\u003ctd\u003eGenerally 90–120°C (194–248°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eSee variant options \/ Contact us to confirm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWall Thickness (Before Shrink)\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003ctd\u003eAutomotive, marine, DIY electrical, tool handles\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\u003eNote:\u003c\/strong\u003e Always verify the cable outer diameter before ordering. For fully submerged or high-voltage applications, please contact us to confirm suitability.\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 length of heat shrink tubing?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eMeasure the section of cable or connector you need to cover and add at least 10–15mm (about 1\/2\") of overlap on each end. For most automotive and marine wiring jobs, 1 metre (≈39.4\") per run is generally sufficient for a single connection point. Order multiple pieces for longer runs or multiple joints.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat shrink ratio does this tubing use, and what does 2:1 mean?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThis tubing uses a 2:1 shrink ratio, meaning it shrinks to approximately half its original inner diameter when heat is applied. A 35mm tube will shrink down to roughly 17.5mm, creating a snug, secure fit around cables and connectors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs this heat shrink tubing waterproof and suitable for outdoor or marine use?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. This tubing is designed to be waterproof once properly shrunk, making it suitable for outdoor, automotive, and marine wiring applications. For fully submerged environments, we recommend confirming suitability with our team before purchase.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat tool do I use to shrink this tubing?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eA heat gun is the recommended tool. In most cases, applying heat evenly at typically 90–120°C (194–248°F) will activate the shrink. Avoid open flames, as uneven heat can damage the tubing or the cable underneath.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat cable sizes fit inside 35mm heat shrink tubing before shrinking?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThe 35mm inner diameter (before shrinking) generally accommodates cable bundles, connectors, or conduit ends up to approximately 34mm in outer diameter. After shrinking, it will conform tightly to cables down to roughly 17–18mm.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDoes the non-slip texture affect how the tubing shrinks?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eNo. The non-slip surface texture is built into the outer wall of the tubing and does not interfere with the 2:1 shrink performance. It simply provides a better grip on the finished sleeve, which is useful in automotive and tool-handle applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use this tubing for automotive wiring repairs?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. This 35mm heat shrink sleeving is commonly used for automotive wiring harness repairs, protecting exposed connectors, and bundling cables under the hood or in door panels. The waterproof design helps resist moisture and vibration common in engine bay environments.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your \u003cstrong\u003ecolor and length\u003c\/strong\u003e above, then add to cart — ships from our US warehouse.\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HomeDIYer","offers":[{"title":"φ35mm \/ Red \/ 1 Metre","offer_id":52330374201618,"sku":"GYWXWGZYYSG1915x1","price":5.29,"currency_code":"USD","in_stock":true},{"title":"φ35mm \/ Purple \/ 1 Metre","offer_id":52330374234386,"sku":"GYWXWGZYYSG1916x1","price":5.56,"currency_code":"USD","in_stock":true},{"title":"φ35mm \/ Green \/ 1 Metre","offer_id":52330374267154,"sku":"GYWXWGZYYSG1917x1","price":5.56,"currency_code":"USD","in_stock":true},{"title":"φ35mm \/ Blue \/ 1 Metre","offer_id":52330374299922,"sku":"GYWXWGZYYSG1918x1","price":5.56,"currency_code":"USD","in_stock":true},{"title":"φ35mm \/ Black \/ 1 Metre","offer_id":52330374332690,"sku":"GYWXWGZYYSG1919x1","price":5.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture1of11_a8662b45-f2df-444e-8454-5867b2f7e782.jpg?v=1780906874","url":"https:\/\/homediyer.com\/products\/heat-shrink-tubing-35mm-2-1-waterproof-cable-sleeving","provider":"HomeDIYer","version":"1.0","type":"link"}