Oatey 30372 No. 95 Tinning Flux, Lead Free 8-Ounce
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During the tinning process, the flux helps to remove any existing oxidation or contaminants on the soldering iron tip. This ensures a clean and well-prepared surface for the solder to adhere to. Without flux, the solder may not flow smoothly and may result in a weak or unreliable joint. How to Apply Flux to the Soldering Iron Tip If that pipe you decide to make use of will have to withstand higher levels of heat or you need it to clean drinking water, you should choose tinning flux. These pipes won’t burst from water whenever it becomes hot and these oxides would be removed. Heat each end of the copper pipe. Make sure your torch gets set to a lower power “rosebud” flame. The flame should wrap around the pipe’s perimeter and get the tinning to “sweating” temperature all the way around. Heat the entire section of the joint seam. You should never use lead-based solder when working with piping that will carry water, as the lead is toxic and will make the water unsafe to drink. Heat the soldering iron: Once the flux is applied, heat the soldering iron to the appropriate temperature for tinning. The flux will start to bubble and activate as the soldering iron heats up.
It is best to use the tinning flux as soon as you can after opening the container. This will ensure that the flux is in good condition and won’t stop working. Wait until you are ready to use it before opening it up to make sure it is ready and usable, otherwise you might find yourself on an emergency trip to the hobby store. Can I Use Tinning Flux for Electronics?If you are choosing a flux for your pipes, it is always best to go with the tinning flux. While standard flux can do the work and is pretty secure and strong, the tinning flux adds another level of protection. Tinning a wire is one of the best things you can do for your productivity. Tinning a wire is excellent for several reasons, including: Tinning flux can also be used on your electronics. You do need to make sure that you get the right kind. Several types of flux can be more corrosive, which can ruin the electronics that you want to work with. When combining two pipes with the help of soldering, there’s a need to prevent the occurrence of oxidation. Because oxidation is natural in nature, using flux is very important for preventing oxidation with much moisture and high temperatures. However, which of the two – tinning flux vs regular flux is better and more effective. Some leaded solders will come with a rosin core. This means that they are slightly hollow and will have a thin line of rosin flux running through the middle. It will only be a small amount, so it shouldn't replace other flux, but it will increase the flux coating of your wires.  X Research source
Apply a thin layer of tinning to the tip of your soldering iron and the cleaned sections of the copper pipe you are working with. Wipe off any excess with a cloth or brush. Wrap an emery cloth around your finger and clean the mouth of each pipe. Your pipe needs a thorough cleaning when soldering it with a tinning joint. When cleaning the pipe, the first couple of inches inside and outside of the pipe are all you need to focus on. The mouth of the pipe is essential for getting smooth and clean. A clean and smooth pipe fitting ensures that the joint is healthy and that tinning is successful. The tool that helps the most with roughly cleaning and sanding away debris is a wire fitting brush you rotate inside the pipe.Proceed with tinning: Once the soldering iron tip is properly fluxed, you can proceed with applying solder to tin the tip. The flux will help the solder to flow smoothly and evenly, resulting in a well-tinned soldering iron tip. Coat the wires with the soldering flux. Use a small paintbrush or your fingers to scoop up a small amount of soldering flux. Spread the flux over the area you will be soldering, making sure to cover the wires fully. Wipe any excess flux off your fingers or brush before soldering.  X Research source Tinning also keeps your soldering iron tip from oxidizing and creating ugly ad dirty build-up due to air on the iron’s surface. The iron tip of the soldering iron oxidizes when exposed to oxygen. Oxidation makes the soldering iron tip much less efficient and limits the heat transfer from the iron to the surface and wires you are working on. Tregoning, W. H. (1901), "Proceedings - Institution of Mechanical Engineers, Parts 3-5", in Institution of Mechanical Engineers (Great Britain) (ed.), The manufacture of tin-plate, Institution by Mechanical Engineering Publications Ltd., pp.1273–1282 When the wire is filled but not melted too much, it is time for removal. Remove the soldering iron by snipping off the end with a wire snip scissor and clean up the end of the tin with the scissors, as well.
While most piping will do fine with standard flux, it is best to work with the tinning flux. It can do the same job as standard flux, with some help cleaning out the oxide and other chemicals in the piping not bursting when the temperature gets higher within the pipes. For most jobs you want to do with your pipes, choose to work with tinning flux. What is Tinning Flux Adding tin material as a coating to wires is a great way of helping make your soldering cleaner and easier to work with. Tinning flux is basically the chemical that you can add to the pipe to create a strong bond between two pieces of metal. A soldering gun can do this from the outside and relies on heat, rather than a chemical, to get the work done. Both are efficient and use tin but rely on a different process to combine the joints of the two metals together.At the end of your soldering session, tin the tip one final time, wipe it smooth, then turn the iron off and store it away once cool. Create a thin layer: Move the solder wire around the tip in a circular motion, allowing the solder to evenly coat the entire surface. Aim for a thin layer of solder that covers the entire tip. In the next section, we will discuss the process of applying solder to the heated soldering iron tip for effective tinning. Applying Solder
Tinning is a great way to protect and clean up the process of soldering and working with electrical wires or other fragile metal surfaces like copper foil. Tinning is a process that is difficult to do cleanly and consistently. However, it is essential for strong bonds, clean wiring, and protective surfaces on many metal soldering projects. Soldering flux is only corrosive once it is heated up and in its liquid form. As long as it is still a paste when you start working with it, you don't need to worry about getting any on your skin.
What does flux do?
Tinning is the ultimate way of protecting, strengthening, and bonding your electrical wires. There are several methods of tinning, but all of them include using metal material tin. Tin is handy because it is affordable, applicable in most situations, and has user-friendly properties. The ideal temperature for tinning a soldering iron tip is typically between 350°C and 400°C. This temperature range allows the solder to melt and flow smoothly onto the tip, creating a thin layer of protective coating. It is important to note that different soldering iron models may have specific temperature requirements, so it’s always best to refer to the manufacturer’s guidelines. Different methods of heating the soldering iron In the next section, we will discuss the proper heating of the soldering iron for tinning and the different methods you can use. Heating the Soldering Iron If you are working on piping, it is important to consider which type of flux is best for your needs. The standard flux works well for a lot of projects you want to handle. It is strong, will protect the pipes, and can make sure you do not end up with water leaking out of the pipes.