Lesson learned… but now I need to fix it.

[Jon Cole]

What I learned the hard way- when you grab a roll of solder to make your first metal exhaust, MAKE SURE it doesn’t say “Acid-core†anywhere on the package!

The photos below show what happens. Corrosion builds up, just like on a car battery terminal.

Any ideas on how to fix? If I could clean it, I’m thinking of sealing it with clear lacquer. I hope to avoid harming the paint on the nearby body. I think I attached the part to the muffler with a two-part epoxy.

Thanks!

[Guest Davkin]

Try scrubbing it with a toothbrush with a baking soda/water solution. That should clean and neutralize the acid.

David

[Brendan]

This had happened to someone else that I know. He took a product called CLR and put it on a cloth and just wiped it down. I don't know if it would strip paint or not so I'd be careful. Probably putting a acrylic clear or lacguer clear over the top may prevent it from happening. Hope you're able to fix it.

[jbwelda]

depending on whether you want to weatherize the car, you might think about using that effect for some grime around there...in snowy or muddy weather crud would build up there anyhow. then seal it so it doesnt leak out any further.