![]() ![]() Deteriorated wiring may cause the connection to fail. However, that corrosive acid flux will rapidly degrade wiring if plumbing solder is mistakenly used for electronics. The strong acid in plumbing solder is very corrosive in order to strip the layer of oxidation off the surface of pipes as the solder melts, allowing it to adhere and form a waterproof joint. The acid flux in plumbing solder differs from electrical solder, which contains rosin flux. To make it flow smoothly onto the connection, all solder contains a substance called flux. Solder doesn’t naturally stick to metal as it melts, but tends to ball up in globs. They’re both solder, right? So what could possibly go wrong?Īctually, quite a bit. While it would be unlikely to mistake one for the other, for the purposes of comparison, let’s say an inexperienced do-it-yourselfer accidentally used plumbing solder to make an electrical connection. Plumbing solder resembles thick, heavy-gauge wire while solder for electronics is usually much smaller gauge, as thin as 0.064-inch. Metals that can’t be soldered include iron and aluminum. The metals commonly compatible with standard solder are copper, brass and tin. ![]() When heated, solder flows like liquid and cools quickly. It’s a combination of metals with a low melting point, usually around 300 degrees Fahrenheit. Solder is used to join metal parts together. Not only is it unwise to substitute one for the other, in some circumstances it could be illegal. Solder is an important component of both plumbing and electronics, but plumbing solder and electrical solder are two very different substances. ![]()
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