Filed under: Cables and Wires, Heat Shrink Tubing, Soldering
When it comes to using heat shrink tubing, it is important to correctly use it to ensure that your application will properly be installed according to your needs. Here are some simple tips when using heat shrink tubing.
How To Use Heat Shrink Tubing Properly.
- One of the first things that you need to do is measure the exposed joint length which needs to be covered by the tubing. When you have properly measured your exposed joint it is wise to add another 1 inch to either side of it to get a proper fit and an overall length. For example: if your joint is roughly 1″ in length then you will have a total of 3″.
- Take some sharp scissors and cut the tubing needed to the length required. When you have cut it simply slide the piece of tubing over the wiring that need to be joined together by either soldering or twisting the wiring together. Please note: do not have your shrink tubing near any heat source, especially when soldering as this may cause your tube to shrink prematurely.
- Once you have connected the wiring, simply slide the tubing over the finished joint once it is cooled (if soldered). Then centre it over the electrical connection and wiring so it is even on both sides.
- Next take your heat gun and plug it in allowing it to warm up. Once it is ready carefully place it near the tubing running it back and forth until the tubing has shrunk around the wiring. Please note: If smoke arises when heating the shrink tubing pull the heat gun back slightly to reduce burning of the tube.
- Lastly you will need to let the heat shrink tubing cool before wrapping a continuous round of electrical tape around the tube covering one end to the other. When wrapping it around simply start about ½ an inch from the shrink tubing on the wire so it can create a water right application with a good mechanical sealing solution.
So if you are looking to use heat shrink tubing with your application, why not follow these simple tips to create the perfect tight seal and cover for your wires each and every time.
No too long ago, we talked about a great type of solder to use when you want a joint to form smoothly, without too much or too little flux. But today we’re going to talk about what to do when you need to get rid of a soldering joint. Depending on exactly what type of project you’re working on, you may need to disconnect a soldered-on cable connector, or maybe remove a solder bridge from a circuit board. Melting the joint back down is usually enough to break the connection, but how do you remove that little bead of molten solder that’s left over?
Some people like to use a solder suction device, which literally sucks up the solder as soon as you’ve melted a joint. But other people prefer a gentler approach, which involves gradually wicking solder away as it melts with a product known as desoldering braid. Desoldering braid is really pretty simple: it’s woven out of very fine copper strands, which, when held against a melting solder joint, “soak up” (or wick away) the liquified solder, to the point that the braid actually becomes so saturated that it loses its signature copper color, and picks up the color of the solder, instead.
MG Chemicals makes a nice desolderer known as Fine Braid Super Wick, which works as well with jewelry and plumbing as it does with circuit board work. Using Fine Braid Super Wick is easy – just match the diameter of the joint to be removed with braid that’s the same width (or a little bit wider than) it. From there, you fire up your soldering iron, lay the braid across the joint to be removed, and apply your soldering iron directly to the braid. This heats up the copper, which in turn transfers that heat to the solder, causes it to melt, and finally soak into the braid. When you lift away the braid, all of that old solder comes right along with it.