--- product_id: 403242242 title: "30+70pcs Solder Seal Wire Connectors Waterproof Heat Shrink Electrical Wire Butt Terminals Non Slip Assorted Insulated Wire Connectors for Marine Vehicle Electrical Engineering" brand: "yuechenggui" price: "€ 15.48" currency: EUR in_stock: true reviews_count: 8 category: "Yuechenggui" url: https://www.desertcart.hr/products/403242242-30-70pcs-solder-seal-wire-connectors-waterproof-heat-shrink-electrical store_origin: HR region: Croatia --- # Supports up to 600V max voltage Double-wall waterproof insulation 2:1 shrink ratio for tight seal 30+70pcs Solder Seal Wire Connectors Waterproof Heat Shrink Electrical Wire Butt Terminals Non Slip Assorted Insulated Wire Connectors for Marine Vehicle Electrical Engineering **Brand:** yuechenggui **Price:** € 15.48 **Availability:** ✅ In Stock ## Summary > ⚡ Seal the deal with every connection—solder, shrink, and secure like a pro! ## Quick Answers - **What is this?** 30+70pcs Solder Seal Wire Connectors Waterproof Heat Shrink Electrical Wire Butt Terminals Non Slip Assorted Insulated Wire Connectors for Marine Vehicle Electrical Engineering by yuechenggui - **How much does it cost?** € 15.48 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/403242242-30-70pcs-solder-seal-wire-connectors-waterproof-heat-shrink-electrical) ## Best For - yuechenggui enthusiasts ## Why This Product - Trusted yuechenggui brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Organized & Portable:** Comes in a compact storage box with compartments—perfect for on-the-go pros and DIY enthusiasts. - • **Built for High Performance:** Rated for up to 600 volts and 138°C melting temp—ideal for automotive, marine, and industrial use. - • **Marine-Grade Waterproofing:** Double-wall polyolefin tubing with hot melt adhesive ensures corrosion-proof, weather-tight protection. - • **Universal Wire Compatibility:** Covers 0.25mm² to 6.00mm² wire sizes with color-coded connectors for quick identification. - • **Effortless One-Step Connection:** No crimping needed—just heat and seal for a flawless solder joint every time. ## Overview This 100-piece set of solder seal heat shrink wire connectors combines advanced polyolefin tubing with internal solder and hot melt adhesive to create waterproof, corrosion-resistant, and vibration-proof electrical connections. Designed for wire sizes from 0.25mm² to 6.00mm² and rated up to 600 volts, these connectors simplify marine, automotive, and industrial wiring projects by eliminating crimping and ensuring a reliable, professional-grade seal every time. ## Description Description: 100pcs Solder Seal Heat Shrink Butt Wire Connector Terminals Copper An easy one step connection of wires, soldered, insulated and sealed Can be ideal use in marine and automobile applications Polyolefin tubing in outside and hot melt adhesive in inside Solder and seal and with advanced waterproof function Polyolefin heat shrink butt connectors improved pullout strength, provides seal, strain relief, cable check, and insulation Specification: Brand new Material: Polyolefin Colors: Red & clear, Blue & clear, Yellow & clear, White & clear, black Size: approx. 40*5*5mm Storage Box Size: approx. 135*70*30mm Cross-sectional area: 0.25mm2 - 6.00mm2 Voltage: max. 600V Melting temperature: 138℃ Shrink ratio: 2 : 1 Red & clear: 0.5-1.50mm2 (10pcs) Blue & clear: 1.50-2.50mm2 (10pcs) Yellow & clear: 4.00-6.00mm2 (5pcs) White & clear: 0.25-0.35mm2 (5pcs) Black：70pcs Package included: 100 x Heat Shrink Butt Wire Connectors Terminals 10 Red, 10 Blue, 5 White, 5 Yellow, 70 Black Review: Top product please - I was a little sceptical about these as never used before but decided to try whilst fitting some spot light to my BMW GS1200 and they were fantastic! Stripped the wires back, slid on a blue connector and pushed back, wound the copper wire together to make a connection. I then slid the connector over so the solder ring was over the wire, I then used my heat gun to warm up and saw the plastic shrink onto insulation and the solder ring melt onto the copper….prefect connection. Will definitely be buying again. Review: Easy to use - Great for easy solder joints and weather proofing ## Features - 100Pcs Solder Wire Connector: This heat shrink wire connectors features with polyolefin tubing outside hot melt adhesive and solder inside When the shrinkage reach 2:1 The tubing tends to shrink and then forming a strong bond - Waterproof and Insulation: This heat shrink crimp connector adopted double wall design ensures waterproof sealing and prevents wire corrosion The outer polyolefin tube provides insulation and increases pull-out strength; The internal hot melt and solder ensure tight wire connections and prevent wires from slipping out of the terminals - No Slip Wire Connect: No crimping required simply position the stripped wires into the solder sleeve and apply heat to complete the connection When Heating the Solder Melts to Strongly Hold the Wire Never Slip Out of the Connector - Safe and Easy to operate: Solder Seal Wire Connectors Meets all Relevant European Standards No Need to Crimp Simply Position the Stripped Wires into the Solder Sleeve and Heat Uniformly to Finish the Connection - Widely Applications: Waterproof insulated heat shrinkable terminals are optimal for your marine vehicle aircraft home and even scientific projects Ensuring secure and weatherproof soldering Comes with a case with compartments for easy storage and portable use ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09MDFJ8XC | | Best Sellers Rank | 5,346 in DIY & Tools ( See Top 100 in DIY & Tools ) 17 in Electrical Terminals & Kits | | Brand | Yuechenggui | | Colour | Red, Blue, White, Yellow, Black | | Connector Gender | Male | | Connector Type | Butt Splice | | Connector type | Butt Splice | | Contact Material | Copper | | Contact material | Copper | | Country Of Origin | China | | Customer Reviews | 4.4 out of 5 stars 601 Reviews | | Insulation Material Type | Polyolefin | | Insulation material | Polyolefin | | Manufacturer | YUECHENGG | | Manufacturer Part Number | 602024113904 | | Material | Polyolefin | | Maximum Voltage | 600 Volts | | Model Number | 602024113904 | | Number of Items | 100 | | Specification Met | CE | | Terminal | Butt Terminal | | UPC | 602024113904 | ## Product Details - **Colour:** Red, Blue, White, Yellow, Black - **Connector type:** Butt Splice - **Contact material:** Copper - **Insulation material:** Polyolefin - **Terminal:** Butt Terminal ## Images ![30+70pcs Solder Seal Wire Connectors Waterproof Heat Shrink Electrical Wire Butt Terminals Non Slip Assorted Insulated Wire Connectors for Marine Vehicle Electrical Engineering - Image 1](https://m.media-amazon.com/images/I/61pqiDDMSaL.jpg) ## Questions & Answers **Q: how to use it, does it need a heater to help?** A: Slide the sleeve over the connected wires. you can use a heat gun, hairdryer or naked flame to shrink the sleeve. **Q: What is the length and diameter of the black tubing?** A: Hi sorry for the delay. I got a bag of about 50 shrink wrap sleeves, They are 20mm long. The internal diameter is approximately 2mm. Hope this helps. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Top product please *by S***S on 4 June 2026* I was a little sceptical about these as never used before but decided to try whilst fitting some spot light to my BMW GS1200 and they were fantastic! Stripped the wires back, slid on a blue connector and pushed back, wound the copper wire together to make a connection. I then slid the connector over so the solder ring was over the wire, I then used my heat gun to warm up and saw the plastic shrink onto insulation and the solder ring melt onto the copper….prefect connection. Will definitely be buying again. ### ⭐⭐⭐⭐⭐ Easy to use *by P***S on 24 May 2026* Great for easy solder joints and weather proofing ### ⭐⭐⭐⭐ Good product, misleading description *by D***T on 18 January 2025* On the good side, have repaired Xmas light wiring with these, so only low current thin wires, used a small heat gun and results are good and tidy connection. Joins all seem secure can't fault this for small repairs. On the downside, description gives the impression the black sleeves are connection tubes, not so they are small shrink sleeves, if they were larger they could be useful but even for my thin wires they are too small thus its just padding to give the impression its good value for money, its tarnishes the better connectors giving rise to loss of ratings. ## Frequently Bought Together - 30+70pcs Solder Seal Wire Connectors Waterproof Heat Shrink Electrical Wire Butt Terminals Non Slip Assorted Insulated Wire Connectors for Marine Vehicle Electrical Engineering - SEEKONE Mini Heat Gun 2 Temperature 260℃/450℃, 350W Handheld Hot Air Gun Tool 1.5S Fast Heating with Overload Protection, Non-Slip Rubber Body, Nozzle for Craft Embossing, Shrink Wrapping - ASHINER Heat Shrink Tubing Kit - 580Pcs EVA Material in 6 Colors and 11 Sizes - Ideal for Electrical Insulation, Repairs, and Wire Connectors with User-Friendly Design and Storage Case --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/403242242-30-70pcs-solder-seal-wire-connectors-waterproof-heat-shrink-electrical](https://www.desertcart.hr/products/403242242-30-70pcs-solder-seal-wire-connectors-waterproof-heat-shrink-electrical) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-10-17*