--- product_id: 500563927 title: "400PCS Solder Seal Wire Connectors" brand: "sopoby" price: "HK$326" currency: HKD in_stock: true reviews_count: 13 category: "Sopoby" url: https://www.desertcart.hk/products/500563927-400pcs-solder-seal-wire-connectors store_origin: HK region: Hong Kong --- # Double-wall waterproof seal Solder melts at 138°C Abrasion & vibration resistant 400PCS Solder Seal Wire Connectors **Brand:** sopoby **Price:** HK$326 **Availability:** ✅ In Stock ## Summary > ⚡ Seal it, shrink it, secure it — the ultimate wire connection upgrade! ## Quick Answers - **What is this?** 400PCS Solder Seal Wire Connectors by sopoby - **How much does it cost?** HK$326 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/500563927-400pcs-solder-seal-wire-connectors) ## Best For - sopoby enthusiasts ## Why This Product - Trusted sopoby brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Rugged Heat Shrink Tubing:** Polyolefin outer layer resists abrasion, cutting, and vibration—perfect for harsh automotive and outdoor environments. - • **Color-Coded for Efficiency:** Quickly identify wire gauge sizes with vibrant color coding, streamlining your workflow and reducing errors. - • **Versatile Application Mastery:** Ideal for motorcycles, boats, trucks, RVs, and DIY projects—engineered to deliver professional-grade results across all your electrical needs. - • **Unrivaled Waterproof Protection:** Double-wall tubing with hot melt adhesive locks out moisture and prevents wire slippage for marine-grade durability. - • **Precision Solder Seal Technology:** Solder ring activates at 138°C, ensuring a flawless, long-lasting electrical connection every time. ## Overview The Sopoby 400PCS Solder Seal Wire Connectors kit features double-wall polyolefin tubing with a hot melt adhesive interior that creates a waterproof, vibration-resistant seal. The built-in solder ring melts at 138°C to form a reliable, corrosion-resistant electrical connection. Designed for harsh environments, these connectors are color-coded for easy identification and perfect for automotive, marine, and DIY electrical projects requiring durable, professional-grade wire splicing. ## Description Product description Sopoby Solder Seal Wire Connectors SPECIFICATION Shrinkage ratio 2:1 Dual-walled design tubing: polyolefin tubing on the outside and hot melt adhesive inside Color coded connector tubing Heat activated waterproof adhesive Temperature that start to shrink: 80℃ Temperature that solder ring start to melt: 111℃ Temperature that solder ring melt completely：138℃ Note: We suggest the temperature that the hot air gun should set about:400-600℃ (752-1112°F) Rugged and puncture resistant. Waterproof. Resistant to abrasion, stretch and vibration Heat activated adhesive Greater tensile strength All materials are heat resistant Suggest used a 1500W heat gun. Create a waterproof seal Resistant to stretch and vibration Color coded for easy identification Starts to melt at lower temperature (280 °F) Prevents burns in the heat shrink tubing A more efficient alternative to soldering Offer protection to the wires and cables from abrasion, cutting, scuffing and low impact situations. Create cable entry seals, offering environmental sealing protection. Strip wire insulator with a proper length and insert wires into the solder sleeve of proper size Twist the conductor together and move the connector to the middle of the conductor Evenly heat by a heat gun (better with reflector nozzle) until it melts WIDE APPLICATIONS MOTORCYCLE LIGHT DIY Review: Reliable and Efficien - I've been using these 400PCS Solder Seal Wire Connectors for various electrical projects, and I'm thoroughly impressed with their performance. Here's my take on how to get the best out of these connectors, following some trial and error and considering other reviews. Optimal Heat Setting: A crucial tip for anyone using these solder seal wire connectors is to set your heat gun to a precise temperature. I've found that 550 degrees Fahrenheit is the sweet spot. This temperature allows the solder to melt perfectly while also activating the glue without damaging the connector itself. It’s a critical step to ensure a strong, reliable seal. Application Technique: The technique you use during application significantly affects the outcome. Start by heating the outer portion of the connector where the glue resides. This approach secures the wire in place first, which prevents any slipping while you’re working on the solder. Once the outer sleeve is adequately shrunk and the wire is secured, you can then focus on melting the solder evenly around the wire. This method ensures a robust and evenly distributed connection. Performance and Reliability: These connectors are excellent for creating strong, weather-proof seals in wiring projects. Whether you're working on automotive wiring, marine electronics, or home repairs, these connectors provide a dependable solution. They save time compared to traditional soldering methods, and when done correctly, the results are both aesthetically pleasing and electrically sound. User Experience: I’ve noticed some reviews mentioning issues with melting or the connectors not holding well. From my experience, these issues are largely due to incorrect heat settings or application techniques. When used correctly, these connectors perform exceptionally well. Make sure to rotate the wire gently and evenly as you apply heat to distribute the solder and glue properly. Final Thoughts: Overall, the 400PCS Solder Seal Wire Connectors kit is a fantastic choice for DIY enthusiasts and professionals alike. They offer a quick, clean, and reliable method for connecting wires without the fuss of crimp tools or soldering irons. Just remember to use the correct heat settings and apply heat properly to achieve the best results. If you’re looking for efficient, reliable, and easy-to-use wire connectors, I highly recommend giving these a try. Just follow the tips for heating, and you'll likely find these connectors to be a game-changer in your electrical projects. Review: Works great - These are durable.The quality is pretty good.Easy to heat shrink and waterproof. Also very easy to use ## Features - BETTER WATERPROOF SOLUTIONS: Double wall design, Hot Melt Adhesive inside ensures wires strongly connected and prevent wires slipping from the terminal; Polyolefin outside tubing provides insulation and improves pullout strength - PREMIUM SOLDER SEAL RING: Tubing reduces in size, the enough solder will melt and flow through the stripped wires, ensure a long lasting connection for your application - ABRASION RESISTANCE HEAT SHRINKABLE TUBE: Premium tube materials are specially designed to be used in harsh environments. Protect the wires and cables from abrasion, cutting, scuffing and low impact situations - EXCELLENT WIRE CONTACT: The tin barrel provides increased current flow, and ensures less voltage drop, preventing wiring failures and reducing equipment downtime - WIDE APPLICATIONS: Excellent stability, water resistance and electrical conductivity provide durable connection for motorcycle, off-road vehicles, lawn tractors, RVs, fish finder and marine application. Widely used on multiple projects of your Christmas lights, ships with high waterproof requirements motorcycle stereo, boat electronics, equipment switches ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BKSJQC9Q | | Best Sellers Rank | #20,174 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #146 in Butt Terminals | | Brand Name | Sopoby | | Color | Green, Blue, Red | | Connector Gender | Male | | Connector Type | Butt Splice | | Contact Material | Copper | | Customer Reviews | 4.7 out of 5 stars 1,617 Reviews | | Insulation Material | Polyolefin | | Insulation Material Type | Polyolefin | | Manufacturer | Sopoby | | Material | Polyolefin | | Material Type | Polyolefin | | Maximum Voltage | 12 Volts (DC) | | Model | Amazon-Sop-1115US | | Number of Items | 400 | | Part Number | Amazon-Sop-1115US | | Temperature Rating | 125 degree celsius | | Terminal | Butt Terminal | ## Product Details - **Connector Type:** Butt Splice - **Contact Material:** Copper - **Insulation Material:** Polyolefin - **Terminal:** Butt Terminal - **Material:** Polyolefin ## Images ![400PCS Solder Seal Wire Connectors - Image 1](https://m.media-amazon.com/images/I/81ghYg+iX9L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Reliable and Efficien *by C***) on March 22, 2025* I've been using these 400PCS Solder Seal Wire Connectors for various electrical projects, and I'm thoroughly impressed with their performance. Here's my take on how to get the best out of these connectors, following some trial and error and considering other reviews. Optimal Heat Setting: A crucial tip for anyone using these solder seal wire connectors is to set your heat gun to a precise temperature. I've found that 550 degrees Fahrenheit is the sweet spot. This temperature allows the solder to melt perfectly while also activating the glue without damaging the connector itself. It’s a critical step to ensure a strong, reliable seal. Application Technique: The technique you use during application significantly affects the outcome. Start by heating the outer portion of the connector where the glue resides. This approach secures the wire in place first, which prevents any slipping while you’re working on the solder. Once the outer sleeve is adequately shrunk and the wire is secured, you can then focus on melting the solder evenly around the wire. This method ensures a robust and evenly distributed connection. Performance and Reliability: These connectors are excellent for creating strong, weather-proof seals in wiring projects. Whether you're working on automotive wiring, marine electronics, or home repairs, these connectors provide a dependable solution. They save time compared to traditional soldering methods, and when done correctly, the results are both aesthetically pleasing and electrically sound. User Experience: I’ve noticed some reviews mentioning issues with melting or the connectors not holding well. From my experience, these issues are largely due to incorrect heat settings or application techniques. When used correctly, these connectors perform exceptionally well. Make sure to rotate the wire gently and evenly as you apply heat to distribute the solder and glue properly. Final Thoughts: Overall, the 400PCS Solder Seal Wire Connectors kit is a fantastic choice for DIY enthusiasts and professionals alike. They offer a quick, clean, and reliable method for connecting wires without the fuss of crimp tools or soldering irons. Just remember to use the correct heat settings and apply heat properly to achieve the best results. If you’re looking for efficient, reliable, and easy-to-use wire connectors, I highly recommend giving these a try. Just follow the tips for heating, and you'll likely find these connectors to be a game-changer in your electrical projects. ### ⭐⭐⭐⭐⭐ Works great *by T***E on March 8, 2026* These are durable.The quality is pretty good.Easy to heat shrink and waterproof. Also very easy to use ### ⭐⭐⭐⭐⭐ These work great *by A***R on May 11, 2026* These work great ## Frequently Bought Together - 400PCS Solder Seal Wire Connectors, Sopoby Self Soldering Heat Shrink Butt Connector Solder Sleeve Waterproof Insulated Electrical Butt Splice Wire Terminals for Marine Automotive Boat Truck - SEEKONE Mini Heat Gun, 350W 2-Temp Settings 500℉ & 842℉（260℃& 450℃） Fast Heat Hot Air Gun Tool with Reflector Nozzle and 4.9Ft Long Cable Overload Protection for Crafting, Vinyl Wrap and Shrink Tubing - Eventronic 400 Pcs Heat Shrink Tubing Kit-3:1 Ratio Adhesive Lined,Marine Grade Shrink Wrap - Industrial Heat-Shrink Tubing - Black --- ## 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.hk/products/500563927-400pcs-solder-seal-wire-connectors](https://www.desertcart.hk/products/500563927-400pcs-solder-seal-wire-connectors) --- *Product available on Desertcart Hong Kong* *Store origin: HK* *Last updated: 2026-07-10*