Originally Posted by
Colnago Mixte
Bike is fine, I just wish the powdercoaters hadn't done such a sloppy job,
see that rust they left under the bottle boss? Very sloppy work, IMO, plus they put a whole bunch of new scratches in the frame while working on it. Bastards, I'm not taking any bike frames back to them again.
- Rust under the powder ~ that's a bad scene. Maybe someone else can confirm, but I believe that will lead to longer term problems.
Powder Coating is basically like shrink wrapping your frame in plastic - the powder melts at 400F or something. At that temp the frame will be dry, especially if a pre-bake was done. But leaving rust under the power - I dunno. Water can't get to it, but if they were on conscientious enough get to bare steel, I would be worried the corrosion could continue.
I had a frame that was powder coated new ~ but took a couple of tries before the frame builder was satisfied. I think it corroded from the inside of the frame out. The powder started to show blisters in places. By the time I could afford to get a new paint job, it was too late. Too many spots corroded from the inside of the tubes out. Keep an eye on it, I guess.