Originally Posted by
bark_eater
What kind of prep is necessary for using this stuff over "Patina"?
Originally Posted by
3alarmer
...depends on what you want to achieve. In the case of that Lenton, in the few spots that were rusted back near the dropouts, I used some Rustoleum rust converter/primer tha leaves the spot black and ready to accept paint. Anything loose orr peeling needs to come off, but otherwise it's pretty user friendly. Note that I am not using this stuff in accordance with the commonly accepted "recoat window" advice. I accept all that as probably the best way to achieve maximum advantage in your final result (in terms of toughness and durability). But there are some practical limitations when painting bicycles that get in the way. One of them is application of stickers, which is kind of an ifffy experience when your color coat is less than 24 hours old. Another is in using the stuff as a topcoat in an attempt to preserve original paint and decals.
I freely admit I'm using it in experiments, and my experiments are in contravention of the literature that comes from the manufacturer. But I'm thus far pleased with the results.
Originally Posted by
3alarmer
^^^I presume it goes without saying that you need to strip the frame of components, mask anything you don't want painted, and to clean off any wax or other coatings with mineral spirits or some other solvent suitable to the job that will not further damage your patina.
...having said all that, I would not use the stuff over patina. Patina under glass looks different from patina. The paint itself is expensive (20 bucks a can), and the hazards involved in spraying it have already been mentioned. Finally, it will be very much more difficult to remove if you tire of the patina and want to repaint the frame. I'm uncertain if there are chemical agents that will remove it, so you're stuck with mechanical methods.
I have mostly used it as a final step in complete repaints/rebadges. It's a lot of work. Patina preservation is not hat important to me. You just wax it and get more patina with use.
