{"product_id":"solder-seal-heat-shrink-wire-connectors-waterproof-solder-butt-splice-terminals","title":"Solder Seal Heat Shrink Wire Connectors – Waterproof Solder Butt Splice Terminals","description":"\u003cstyle\u003e\n.nznpd{--o:#F57C00;--od:#E65100;--ink:#0F172A;--mut:#5b6573;--line:#E8ECF0;--soft:#F7F8FA;max-width:1120px;margin:0 auto;color:var(--ink);font-family:inherit;line-height:1.6}\n.nznpd,.nznpd *{box-sizing:border-box}\n.nznpd p{margin:0;color:var(--mut);font-size:15px;line-height:1.65}\n.nznpd strong{color:var(--ink)}\n.nznpd__intro{font-size:16px;color:var(--ink);font-weight:500;line-height:1.6;max-width:72ch}\n.nznpd__checks{list-style:none;padding:0;margin:22px 0 0;display:grid;grid-template-columns:repeat(2,1fr);column-gap:26px;row-gap:13px}\n.nznpd__checks li{display:flex;gap:11px;align-items:flex-start;font-size:15px;color:var(--ink);line-height:1.45}\n.nznpd__checks li::before{content:\"\\2713\";flex:0 0 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li::before{counter-increment:s;content:counter(s);width:27px;height:27px;border-radius:999px;background:#fff;border:2px solid #FCE0C6;color:var(--od);font-weight:800;font-size:13px;display:flex;align-items:center;justify-content:center}\n.nznpd__steps strong{display:block;font-size:14px}\n.nznpd__steps p{font-size:13px;margin-top:2px;line-height:1.45}\n.nznpd__faqs{display:grid;gap:10px}\n.nznpd__faq{border:2px solid var(--line);border-radius:12px;background:#fff;padding:0 16px;transition:border-color .18s ease}\n.nznpd__faq[open]{border-color:#FCE0C6}\n.nznpd__faq summary{list-style:none;cursor:pointer;padding:15px 0;font-weight:700;font-size:14px;color:var(--ink);display:flex;justify-content:space-between;align-items:center;gap:12px}\n.nznpd__faq summary::-webkit-details-marker{display:none}\n.nznpd__faq summary::after{content:\"\\203A\";flex:0 0 auto;color:var(--o);font-weight:800;font-size:20px;line-height:1;display:inline-block;transform:rotate(90deg);transition:transform .22s ease}\n.nznpd__faq[open] summary::after{transform:rotate(-90deg)}\n.nznpd__faq p{padding:0 0 16px;font-size:14px}\n.nznpd__faq[open] p{animation:nznpdReveal .24s ease}\n@keyframes nznpdReveal{from{opacity:0;transform:translateY(-5px)}to{opacity:1;transform:translateY(0)}}\n.nznpd p.nznpd__note{margin-top:16px;background:var(--soft);border:2px solid var(--line);border-radius:12px;padding:14px 16px;font-size:13.5px;color:var(--mut);line-height:1.55}\n@media (prefers-reduced-motion:reduce){.nznpd__faq summary::after{transition:none}.nznpd__faq[open] p{animation:none}}\n@media (max-width:749px){.nznpd__checks{grid-template-columns:1fr}.nznpd__uses{grid-template-columns:1fr}.nznpd__spec{grid-template-columns:1fr;gap:2px}.nznpd__sizes .r{grid-template-columns:1fr;gap:3px}.nznpd__sizes .r--head{display:none}.nznpd__tiers{grid-template-columns:repeat(2,1fr)}}\n\u003c\/style\u003e\n\u003cdiv class=\"nznpd\"\u003e\n\u003cdiv class=\"nznpd__lead\"\u003e\n\u003cp class=\"nznpd__intro\"\u003eSolder and seal a wire join in one step — no soldering iron, no separate heat-shrink, no electrical tape. Each connector has a \u003cstrong\u003elow-temperature solder ring\u003c\/strong\u003e in the centre and \u003cstrong\u003eadhesive-lined heat-shrink\u003c\/strong\u003e at both ends. Slide it over your wires, hit it with a heat gun, and the solder bonds the conductors while the tubing shrinks into a tidy, \u003cstrong\u003ewaterproof\u003c\/strong\u003e joint. Choose your wire size by colour below — sold individually with a \u003cstrong\u003e10-piece minimum\u003c\/strong\u003e, and the more you buy, the less you pay per connector.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cul class=\"nznpd__checks\"\u003e\n\u003cli\u003eSolder + seal + insulate in a single step\u003c\/li\u003e\n\u003cli\u003eNo soldering iron needed — just a heat gun\u003c\/li\u003e\n\u003cli\u003eWaterproof, dust-proof adhesive-lined seal\u003c\/li\u003e\n\u003cli\u003eLow-temp solder ring melts at ~138°C\u003c\/li\u003e\n\u003cli\u003eClear sleeve lets you see the solder flow\u003c\/li\u003e\n\u003cli\u003e5 colour-coded sizes from 26 to 10 AWG\u003c\/li\u003e\n\u003cli\u003eBuy more, pay less — automatic bulk pricing\u003c\/li\u003e\n\u003cli\u003eStocked and dispatched fast from NZ\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003csection class=\"nznpd__block\"\u003e\n\u003ch3 class=\"nznpd__h\"\u003eChoose your size by colour\u003c\/h3\u003e\n\u003cbr\u003e\n\u003cdiv class=\"nznpd__sizes\"\u003e\n\u003cdiv class=\"r r--head\"\u003e\n\u003cspan\u003eColour\u003c\/span\u003e\u003cspan\u003eWire range (AWG)\u003c\/span\u003e\u003cspan\u003eWire range (mm²)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"r\"\u003e\n\u003cspan class=\"sw\"\u003e\u003cspan class=\"dot\" style=\"background:#fff\"\u003e\u003c\/span\u003eWhite\u003c\/span\u003e\u003cspan\u003e24 – 26 AWG\u003c\/span\u003e\u003cspan\u003e0.25 – 0.34 mm²\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"r\"\u003e\n\u003cspan class=\"sw\"\u003e\u003cspan class=\"dot\" style=\"background:#E53935\"\u003e\u003c\/span\u003eRed\u003c\/span\u003e\u003cspan\u003e18 – 22 AWG\u003c\/span\u003e\u003cspan\u003e0.5 – 1.5 mm²\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"r\"\u003e\n\u003cspan class=\"sw\"\u003e\u003cspan class=\"dot\" style=\"background:#43A047\"\u003e\u003c\/span\u003eGreen\u003c\/span\u003e\u003cspan\u003e16 – 18 AWG\u003c\/span\u003e\u003cspan\u003e0.75 – 1.5 mm²\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"r\"\u003e\n\u003cspan class=\"sw\"\u003e\u003cspan class=\"dot\" style=\"background:#1E88E5\"\u003e\u003c\/span\u003eBlue\u003c\/span\u003e\u003cspan\u003e14 – 16 AWG\u003c\/span\u003e\u003cspan\u003e1.5 – 2.5 mm²\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"r\"\u003e\n\u003cspan class=\"sw\"\u003e\u003cspan class=\"dot\" style=\"background:#FDD835\"\u003e\u003c\/span\u003eYellow\u003c\/span\u003e\u003cspan\u003e10 – 12 AWG\u003c\/span\u003e\u003cspan\u003e4.0 – 6.0 mm²\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"nznpd__block\"\u003e\n\u003ch3 class=\"nznpd__h\"\u003eBuy more, pay less\u003c\/h3\u003e\n\u003cbr\u003e\n\u003cdiv class=\"nznpd__tiers\"\u003e\n\u003cdiv class=\"nznpd__tier\"\u003e\n\u003cstrong\u003e10+\u003c\/strong\u003e\u003cspan\u003eminimum order\u003c\/span\u003e\u003cb\u003eBase price\u003c\/b\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__tier\"\u003e\n\u003cstrong\u003e25+\u003c\/strong\u003e\u003cspan\u003econnectors\u003c\/span\u003e\u003cb\u003eSave 15%\u003c\/b\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__tier\"\u003e\n\u003cstrong\u003e50+\u003c\/strong\u003e\u003cspan\u003econnectors\u003c\/span\u003e\u003cb\u003eSave 28%\u003c\/b\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__tier\"\u003e\n\u003cstrong\u003e100+\u003c\/strong\u003e\u003cspan\u003econnectors\u003c\/span\u003e\u003cb\u003eSave 40%\u003c\/b\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"nznpd__block\"\u003e\n\u003ch3 class=\"nznpd__h\"\u003eSpecifications\u003c\/h3\u003e\n\u003cbr\u003e\n\u003cdiv class=\"nznpd__specs\"\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eType\u003c\/span\u003e\u003cstrong\u003eSolder seal heat-shrink butt connector\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eSolder ring\u003c\/span\u003e\u003cstrong\u003eLow-temp lead-free alloy, flows ~138°C\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eInsulation\u003c\/span\u003e\u003cstrong\u003eAdhesive-lined polyolefin heat-shrink\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eSealing\u003c\/span\u003e\u003cstrong\u003eWaterproof \u0026amp; dust-proof (IP67-rated join)\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eActivation\u003c\/span\u003e\u003cstrong\u003eHeat gun ~250–300°C (hot air)\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eWire range\u003c\/span\u003e\u003cstrong\u003e26–10 AWG \/ 0.25–6.0 mm² (by colour)\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eOperating temp\u003c\/span\u003e\u003cstrong\u003e−45°C to +125°C\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eSleeve\u003c\/span\u003e\u003cstrong\u003eClear, so you can see the solder flow\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eSold as\u003c\/span\u003e\u003cstrong\u003eIndividual connectors, 10-piece minimum\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"nznpd__block\"\u003e\n\u003ch3 class=\"nznpd__h\"\u003eWhat you'll receive\u003c\/h3\u003e\n\u003cbr\u003e\n\u003cdiv class=\"nznpd__included\"\u003e\n\u003cdiv class=\"nznpd__qty\"\u003e10+\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eLoose solder seal connectors in your chosen colour\u003c\/strong\u003e\n\u003cp\u003eSold per piece with a 10-connector minimum — set the exact quantity you need at checkout. Bulk discounts apply automatically at 25, 50 and 100 pieces.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"nznpd__block\"\u003e\n\u003ch3 class=\"nznpd__h\"\u003eGreat for\u003c\/h3\u003e\n\u003cbr\u003e\n\u003cdiv class=\"nznpd__uses\"\u003e\n\u003cdiv class=\"nznpd__use\"\u003eAutomotive \u0026amp; 12V wiring repairs\u003c\/div\u003e\n\u003cdiv class=\"nznpd__use\"\u003eBoat, trailer \u0026amp; caravan wiring\u003c\/div\u003e\n\u003cdiv class=\"nznpd__use\"\u003eLED strips, lighting \u0026amp; accessories\u003c\/div\u003e\n\u003cdiv class=\"nznpd__use\"\u003eOutdoor \u0026amp; garden wiring that needs a seal\u003c\/div\u003e\n\u003cdiv class=\"nznpd__use\"\u003eSpeaker, audio \u0026amp; signal wires\u003c\/div\u003e\n\u003cdiv class=\"nznpd__use\"\u003eAny splice where you can't reach with an iron\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"nznpd__block\"\u003e\n\u003cdiv class=\"nznpd__qs\"\u003e\n\u003ch3\u003eHow to use them\u003c\/h3\u003e\n\u003col class=\"nznpd__steps\"\u003e\n\u003cli\u003e\u003cdiv\u003e\n\u003cstrong\u003eStrip \u0026amp; overlap\u003c\/strong\u003e\u003cp\u003eStrip ~8mm off each wire and twist or overlap the bare strands together in the centre.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cdiv\u003e\n\u003cstrong\u003eSlide the connector on\u003c\/strong\u003e\u003cp\u003eCentre the solder ring directly over the join so the bare wires sit inside it.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cdiv\u003e\n\u003cstrong\u003eApply heat\u003c\/strong\u003e\u003cp\u003ePlay a heat gun evenly around the connector. The solder ring melts and flows into the wires first.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cdiv\u003e\n\u003cstrong\u003eSeal it\u003c\/strong\u003e\u003cp\u003eKeep heating until the coloured bands and tubing shrink fully and a little adhesive weeps from the ends — that's your waterproof seal. Let it cool.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"nznpd__block\"\u003e\n\u003ch3 class=\"nznpd__h\"\u003eCommon questions\u003c\/h3\u003e\n\u003cbr\u003e\n\u003cdiv class=\"nznpd__faqs\"\u003e\n\u003cdetails class=\"nznpd__faq\" open\u003e\n\u003csummary\u003eDo I need a soldering iron?\u003c\/summary\u003e\n\u003cp\u003eNo. These are designed for a heat gun (around 250–300°C). The built-in solder ring does the joining for you, so you never touch an iron. A lighter or torch can work in a pinch, but a heat gun gives the cleanest, most even result and won't scorch the tubing.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"nznpd__faq\"\u003e\n\u003csummary\u003eWhy is there a 10-piece minimum?\u003c\/summary\u003e\n\u003cp\u003eThese are small, low-cost parts, so we sell them in a minimum of 10 to keep per-connector pricing low and shipping worthwhile. Mix the quantity to suit your job, and the price per connector drops automatically as you pass 25, 50 and 100 pieces.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"nznpd__faq\"\u003e\n\u003csummary\u003eAre they really waterproof?\u003c\/summary\u003e\n\u003cp\u003eYes. The heat-shrink tubing is adhesive-lined, so as it shrinks it melts a glue that flows around the wire and seals both ends. That gives a water- and dust-resistant join suitable for automotive, marine, trailer and outdoor use.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"nznpd__faq\"\u003e\n\u003csummary\u003eWhich colour\/size do I choose?\u003c\/summary\u003e\n\u003cp\u003eMatch the colour to your wire gauge: White 24–26 AWG, Red 18–22 AWG, Green 16–18 AWG, Blue 14–16 AWG, Yellow 10–12 AWG. If you're between sizes, pick the one that fits snugly over the stripped, twisted wires — the seal works best with a close fit.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"nznpd__faq\"\u003e\n\u003csummary\u003eWhat temperature melts the solder?\u003c\/summary\u003e\n\u003cp\u003eThe low-temp solder ring flows at roughly 138°C, which is below the temperature needed to fully shrink and seal the tubing. So as you heat, the solder bonds the conductors first and the waterproof seal forms as you finish.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cp class=\"nznpd__note\"\u003e\u003cstrong\u003eGood to know:\u003c\/strong\u003e Use a proper hot-air heat gun for the best seal and rotate it around the connector so the whole joint heats evenly. Stocked and dispatched fast from our Te Awamutu base — overseas prices, without the overseas wait.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"NZN Electronics","offers":[{"title":"White (24–26 AWG)","offer_id":42889068150880,"sku":"SSC-WHT","price":0.3,"currency_code":"NZD","in_stock":true},{"title":"Red (18–22 AWG)","offer_id":42889068183648,"sku":"SSC-RED","price":0.32,"currency_code":"NZD","in_stock":true},{"title":"Green (16–18 AWG)","offer_id":42889068216416,"sku":"SSC-GRN","price":0.35,"currency_code":"NZD","in_stock":false},{"title":"Blue (14–16 AWG)","offer_id":42889068249184,"sku":"SSC-BLU","price":0.37,"currency_code":"NZD","in_stock":true},{"title":"Yellow (10–12 AWG)","offer_id":42889068281952,"sku":"SSC-YEL","price":0.42,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0664\/6127\/0112\/files\/SolderTerminalWireProductHero.png?v=1781848950","url":"https:\/\/www.nznelectronics.co.nz\/products\/solder-seal-heat-shrink-wire-connectors-waterproof-solder-butt-splice-terminals","provider":"NZN Electronics","version":"1.0","type":"link"}