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Old 02-14-2008
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I've seen soldered joins fail, and often far sooner than a properly installed crimp with adhesive-lined heat-shrink will. As Halekai has pointed out, they're far more subject to fatigue than a properly crimped join would be, since the solder does effectively convert the nice flexible strands into a single solid stiff wire.

A bunch of hints to making a crimped connection that will last.

First, use a good ratcheting crimping tool, which will allow you to apply fairly consistent pressure on all of your crimps. Non-ratcheting crimpers will not give a consistent amount of pressure on the crimp.

Second, use good marine-grade crimp terminals—non-marine grade ones will corrode out rather quickly.

Third, use good marine-grade tinned wire. Marine grade wire is pre-tinned, and has more, finer strands, for greater vibration fatigue resistance.

Fourth, use a decent adhesive-lined heat shrink tubing. The adhesive lining is what really makes the connection waterproof. Don't skimp on this step.
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You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
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