Kabel zusammenlöten & wasserdicht versiegeln (Anleitung)

In this how-to video, I’ll show you step by step how to solder two wires together 🔥 and seal them with heat shrink tubing for a waterproof connection 💦. It’s not just about the soldering itself – I’ll also walk you through all the prep work, because as we know: good preparation is half the battle. This guide is perfect for beginners, but also for anyone who’s done some basic soldering and wants to strengthen their skills or maybe even pick up a new tip or two. If you're not interested in soldering irons, solder tips, flux, or accessories, feel free to skip straight to the actual soldering part using the chapter markers. 📺 Soldering Playlist:    • Löten lernen   🛠️ Products used (▶️), owned (🙋‍♂️), or recommended (⭐) in this video: (sponsored) AIFEN A9PRO (T/C245) ▶️ → https://s.click.aliexpress.com/e/_oly... JC AIXUN T3A (T/C245) 🙋‍♂️ → https://s.click.aliexpress.com/e/_oFR... ALIENTEK T80P (C245) ▶️ & T80 (C210) 🙋‍♂️ → https://s.click.aliexpress.com/e/_oEX... KELLYSHUN Sn99.3 Cu0.7 🙋‍♂️ → https://s.click.aliexpress.com/e/_oon... Soldering Fingers (3D print file) ▶️ → https://www.thingiverse.com/thing:172... Magnetic base version ⭐ → https://s.click.aliexpress.com/e/_oEt... XXL silicone mat (700 x 400 mm) 🙋‍♂️ → https://s.click.aliexpress.com/e/_opt... ⏱️ Timestamps: 00:00 How not to solder wires 00:51 Keep solder joint grease-free 01:04 Strip cable insulation 01:20 Slide on heat shrink 01:42 Twist wires together – Method 1 01:57 Twist & wrap cable ends – Method 2 02:24 Fix the wires in place 03:24 Solder wire 04:19 Flux 04:42 Soldering iron 05:03 Solder tip 05:33 Fume extraction 05:48 Solder the wires 06:50 Remove rosin residue 07:05 Don’t clean the tip now! 07:16 Seal joint with heat shrink tubing 07:58 Final soldered cable