It has nothing to do with whether or not coating can stick to it. When there are flux residues left on the PCB before the coating process, it is common to see the coating lift or delaminate from the surface of the board. This is evident when the pockets are isolated around solder joints rather than the overall surface the exception being the bottom of a wave soldered PCB.
To make matters worse, coatings are generally semi-permeable, so breathe to a certain extent. Moisture can enter and soak into the flux residue, and potentially lead to corrosion. Prevent Dendritic Growth from Ionic Contamination - Polar or Ionic particles left from flux residue and other sources, when exposed to moisture from the ambient air and when current is applied, can link into a chain or branch called a dendrite.
These dendrites are conductive, so form an unintended trace that cause current leakage or, over a longer period of time, even a short circuit. Americas English Spanish. My account Login View Cart 0. Desoldering Braid. Where To Buy. Available in static dissipative bobbins for static sensitive environments, and in two different flux types and unfluxed: No-Clean desoldering braid - coated with proprietary flux that only leaves a slight clear residue, which does not cause dendritic growth, corrosion, and other service issues.
Cleaning after using Techspray No-Clean wick is optional. Pro-Wick desoldering wick - coated with a fast activating rosin flux for lightning fast solder removal. Unfluxed desoldering braid - ideal for customers that use an aqueous flux, or are required to maintain the same flux throughout board assembly and rework.
No-Clean Desoldering Braid Desoldering braid without any corrosive ionic flux residues, so cleaning is optional. View Product. All rights reserved. Privacy Statement Accessibility. Soder-Wick User's Guide. Getting Started Steps to using sodering wick: Step one: Choose the appropriate size of wick and soldering tip for the solder to be removed. For the fastest desoldering choose a rosin based flux. For desoldering that does not require cleaning afterwards, choose a braid with No-clean flux.
If you have a requirement that you use a particular flux, or that you use an organic flux…choose unfluxed wick. You will need to add your own flux as you desolder in order. Unfluxed wick has a part number that starts with in the Soder-Wick line. All of the Soder-Wick 5 and 10 foot lengths are wound onto static dissipative bobbins to eliminate any danger of a static charge being generated or transferred from you to the circuit board.
Now for the actual desoldering: Step One: place the wick over the solder to be removed and then place the hot soldering iron over the braid. Removing Small Amounts of Solder Sometimes there is a small amount of solder that is difficult to melt. Instead, add a good amount of solder back to the area. Next, I will demonstrate removing solder from around a lead. Related Products. Soder-Wick Lead-Free Desoldering Wick Safest on thermally sensitive components, with this specially engineered no clean flux coated desoldering wick.
Soder-Wick No Clean Desoldering Wick Cleanest, leaving behind no ionic residue, with no clean flux coated desoldering wick. The solder wicking problem can be controlled by paying attention to the listed parameters:. One solution to this problem is the use of a Kapton tape to cover the unmasked vias on the board to block the molten solder from leaking through the vias.
Once the components are soldered and the PCB is cooled the tape can be peeled off. Already have an account? Click Here. Ask a Question? Solder wick is especially useful if you need to remove solder from a circuit board or components. If you want to learn more about how to clean your circuit board, you can read the attach article. Start by setting up an exhaust fan for the soldering fumes. In addition, wear safety glasses to protect your eyes from molten solder and other hazards.
If you want to learn more about setting up soldering inside, you can read this Basic Indoor Soldering Station Setup article to make sure you do it safely.
Most soldering irons take at least three minutes to fully heat up.
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