Well, ive got about 2.1 meters of cappilary tube. But its in a state. Wondering if theres an acidic somthing or cleaner that i can dip it in and it'll take off the surface layer?
No acids! They will result in poisoning the oil in the system!
Its of really no concern but you should get a wire brush and clean it off before you braze. Flux also is a bit of a cleaner, but after brazing make sure u wipe it off.
Salt, Vinegar, and Flour. Dissolve 1 teaspoon salt in 1 cup white vinegar. Add enough flour to make a paste. Apply the paste to copper and let sit for 15 minutes to 1 hour. Rinse with clean warm water, and polish dry.
Nope the problem with that is the vinegar (acidic) gets into the copper and then is pulled out by the oil in the system. This then creates acid in the compressor which eats the seals and destroys the windings.
