Acid Core Or Rosin Core?

[vintagetrks]

Hi folks gotta solder a few wires together and was wondering which solder is best for this . Acid core or rosin core solder. A couple of the wires I need to solder are for my coil so I need the best stuff I can get.

[jeepinjohn]

Acid core is for copper pipes, rosin core is for wires.

[vintagetrks]

So are you saying rosin core is what I should use for an automotive application?

[SnowShoe]

Acid core is for copper pipes, rosin core is for wires.

X2

[vintagetrks]

Thanks Alot guys I really appreciate it. :thumbsup:

[710 Burner]

If you are using acid core, you might have a bit too much heat there. :thumbsup:

[tgreese]

The acid core solder will solder the wire just fine, but the residual acid will eat the wire in two after a while. Yep, acid core is for pipes or for making stuff from sheet metal... structural uses. Rosin core is for electrical joints.

[blazer3664]

Rosin core also tends to come in smaller gauges. Acid core tends to be in larger gauges, to match the size (1/2" pipe vs. 18-22 ga. wire)of the job. There are exceptions of course, so make sure to check the label.

Tgreese is right, acid core will cause excessive corrosion on wiring.

Jim