[–] CaldwellMadison [S] 0 points 2 points 2 points (+2|-0) ago
No, not a joke. Brake lines are made out of steel, which is vulnerable to rust, and enamel coatings are known to resist water penetration, which can, in turn, prevent rust. What part of my question confuses you?
[–] drakesdoom2 1 point 0 points 1 point (+1|-1) ago
If they are copper or aluminum yes. You can paint the steel ones, not sure how much that will really help.