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Kester K100LD 24-9574-7618, #66 Core/275 Lead Free Solder .031" diameter, 1lb, US $180 – Picture 0
Kester K100LD 24-9574-7618, #66 Core/275 Lead Free Solder .031" diameter, 1lb, US $180 – Picture 0

Kester K100ld 24-9574-7618, #66 Core/275 Lead Free Solder .031" Diameter, 1lb

US $180

  • Springdale, Arkansas, United States
  • Jun 11th
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For sale are 2 spools barely used 1 spool Kester K100LD LEADFREE .031 diameter 1 spool Kester K100LD LEADFREE. 020 diameter Kester K100LD Lead-Free .031 1oz Solder This is 1oz spool with a #66 core of #48 flux. 66 means that 3.3% of the wire is flux by weight. This is recommended for most applications, but versions with less flux are also available. #48 flux is a RA (rosin-activated) flux designed to help solder quickly "wet" or adhere to a variety of surfaces. Most manufacturers would clean activated flux residues, but most applications (hobby, prototype building, consumer electronics) are likely fine with no cleaning. From the #48 flux spec sheet: "The 48 residues are non-conductive, non-corrosive and do not require removal in most applications. The flux residues are comparable to a conventional RA." The residues dry fairly clear with much less of the amber color of #44 flux. Comparing K100LD to the more commonly used SAC (tin silver copper): In our testing, we haven't noticed much difference, except that the joints are shinier with the K100LD. For lead-free solder, however, the shininess of the finished joint is not a good quality indicator--most SAC joints come out duller, and this is perfectly normal.

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