{"product_id":"waterproof-solder-seal-heat-shrink-wire-connectors-50-100pcs","title":"Waterproof Solder Seal Heat Shrink Wire Connectors 50\/100 Pcs","description":"\n\u003ch2\u003eWaterproof Solder Seal Heat Shrink Wire Connectors\u003c\/h2\u003e\n\u003cp\u003eMake fast, reliable, and fully weatherproof wire splices — no soldering iron required. These solder seal sleeve terminals combine a built-in tin-alloy solder ring with a heat-shrink tube, so one pass of a hot air gun delivers a mechanically strong, waterproof, and insulated connection every time. Perfect for automotive wiring repairs, marine applications, home electrical projects, and more.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePremium Plastic + Tin Alloy Construction\u003c\/strong\u003e — Durable, corrosion-resistant materials deliver excellent conductivity alongside reliable insulation for long-lasting performance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Temperature Range\u003c\/strong\u003e — Rated for -55 °C to 125 °C, these connectors perform consistently in demanding environments. Heat shrink activates at 80 °C; solder begins to flow at 138 °C and fully melts at 160 °C for a secure bond.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool-Free Installation\u003c\/strong\u003e — No soldering iron, no flux, no crimping tool needed. Insert the wire, apply heat with a hot air gun, and the sleeve shrinks tightly around the wire for a firm, insulated seal in seconds.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Dielectric Strength\u003c\/strong\u003e — Up to 1 kV dielectric strength effectively prevents leakage and keeps vehicle and household electrical systems safe.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor-Coded Wire Gauges\u003c\/strong\u003e — Four colors simplify wire gauge matching at a glance, reducing errors during installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePlastic + Tin Alloy\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWorking Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-55 °C to 125 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShrink Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e80 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSolder Melt Point\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eInitial 138 °C \/ Full 160 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDielectric Strength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 kV\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePackage Dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12.8 × 7 × 2.1 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWire Gauge Guide (by Color)\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWhite\u003c\/strong\u003e — 0.25–0.34 mm²\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRed\u003c\/strong\u003e — 0.5–1.5 mm²\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBlue\u003c\/strong\u003e — 1.5–2.5 mm²\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eYellow\u003c\/strong\u003e — 4–6 mm²\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e50-Piece Set:\u003c\/strong\u003e 10 White + 23 Red + 12 Blue + 5 Yellow\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e100-Piece Set:\u003c\/strong\u003e 25 White + 35 Red + 30 Blue + 10 Yellow\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eYou May Also Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/insulated-outdoor-faucet-cover-winter-hose-bib-protector\"\u003eInsulated Outdoor Faucet Cover – Winter Hose Bib Protector\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/winter-outdoor-faucet-cover-waterproof-oxford-cloth-tap-protector\"\u003eWinter Outdoor Faucet Cover – Waterproof Oxford Cloth Tap Protector\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/reptile-infrared-heat-lamp-bulb-terrarium-turtle-heater\"\u003eReptile Infrared Heat Lamp Bulb | Turtle \u0026amp; Terrarium Heater\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/hand-power-tools\" target=\"_blank\" rel=\"noopener\"\u003eOSHA guidance on hand and power tools\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: Do I need a soldering iron to use these solder seal wire connectors?\u003c\/h4\u003e\n\u003cp\u003eA: No soldering iron is needed. Simply insert the wire ends into the appropriate color-coded solder seal sleeve and apply heat from a standard hot air gun. The sleeve shrinks, the built-in solder flows, and you get a secure, waterproof connection in seconds — making these ideal for DIY automotive and home electrical repairs.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What wire gauges are compatible with these heat shrink connectors?\u003c\/h4\u003e\n\u003cp\u003eA: The connectors are color-coded by wire gauge: White handles 0.25–0.34 mm², Red covers 0.5–1.5 mm², Blue fits 1.5–2.5 mm², and Yellow accommodates 4–6 mm². Always match the connector color to your wire size for the best seal and conductivity.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Are these waterproof heat shrink connectors suitable for outdoor and automotive use?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The solder seal sleeves are rated for temperatures from -55 °C to 125 °C and carry a dielectric strength of 1 kV, making them well-suited for automotive wiring, marine environments, outdoor electrical installations, and other applications exposed to moisture or temperature extremes.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How many connectors are included in each set?\u003c\/h4\u003e\n\u003cp\u003eA: The 50-piece set includes 10 White, 23 Red, 12 Blue, and 5 Yellow connectors. The 100-piece set includes 25 White, 35 Red, 30 Blue, and 10 Yellow connectors — providing a versatile assortment for a wide range of wire gauges.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Do I need a soldering iron to use these solder seal wire connectors?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No soldering iron is needed. Simply insert the wire ends into the appropriate color-coded solder seal sleeve and apply heat from a standard hot air gun. 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