{"product_id":"gaine-thermo-rouge-12mm-au-metre","title":"Red 12 mm heat-shrink tubing per meter","description":"\u003cp\u003eRed heat-shrink tubing \u003cstrong\u003ewithout adhesive\u003c\/strong\u003e, Ø 12 mm before shrinking and Ø 4 mm after free shrinking, \u003cstrong\u003e3:1\u003c\/strong\u003e shrink ratio, sold \u003cstrong\u003eper meter\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eSingle wall: implications\u003c\/h3\u003e\n\u003cp\u003eWithout adhesive, the tubing mechanically grips the support without sealing it. This is suitable for polarity marking and circuit identification. For a junction that must remain watertight — crimped terminal exposed, wet bulkhead penetration — use adhesive-lined tubing: the adhesive version is available in the same diameter.\u003c\/p\u003e\n\n\u003ch3\u003ePolarity marking\u003c\/h3\u003e\n\u003cp\u003eRed is used to mark the positive on a DC installation. The color code is only valid if consistently applied throughout the vessel: a red sleeve on a negative is worse than no sleeve at all.\u003c\/p\u003e\n\n\u003ch3\u003eChoosing the correct diameter\u003c\/h3\u003e\n\u003cp\u003eThe Ø 12 mm must fit over the widest point to be covered, and the Ø 4 mm after shrinking must be smaller than the support so the tubing grips. Between these two values, the 3:1 ratio provides a comfortable adjustment range.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eShrink ratio: 3:1\u003c\/li\u003e\n  \u003cli\u003eInternal diameter before shrinking: 12 mm\u003c\/li\u003e\n  \u003cli\u003eInternal diameter after free shrinking: 4 mm\u003c\/li\u003e\n  \u003cli\u003eNo adhesive — mechanical grip, no sealing\u003c\/li\u003e\n  \u003cli\u003eColor: red\u003c\/li\u003e\n  \u003cli\u003eSold per meter — 1 quantity = 1 meter\u003c\/li\u003e\n  \u003cli\u003eDelivered in \u003cstrong\u003econtinuous lengths up to 1.2 m maximum\u003c\/strong\u003e (procurement length)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat this datasheet does not cover\u003c\/h3\u003e\n\u003cp\u003eHardware reference without published manufacturer datasheet: the shrink ratio and diameters above come from the supplier catalog, but we have \u003cstrong\u003eno certified temperature range, UL approval, or reference standard\u003c\/strong\u003e for this line. For applications where these guarantees matter — specified watertightness, engine harness, contractual use — use the TE Connectivity ATUM range from the catalog, documented (UL E85381, AMS-DTL-23053\/4, −55 °C to +110 °C).\u003c\/p\u003e","brand":"Skysat","offers":[{"title":"Default Title","offer_id":56839569277268,"sku":"TH123","price":7.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0988\/3274\/4788\/files\/gaine-thermo-kent-noire-rouge_fa8a642a-de95-44db-8d4c-df41298e82fb.png?v=1787069275","url":"https:\/\/skysat.fr\/en-us\/products\/red-heat-shrink-tubing-12mm-per-meter","provider":"Skysat","version":"1.0","type":"link"}