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Advice on clear coating my new-used Bianchi?(6 posts)

Advice on clear coating my new-used Bianchi?TNSquared
Sep 16, 2003 1:23 PM
I just bought a used Bianchi cyclocross bike (as pictured in J's "SAG 101" post!). Overall the frame is in very good condition, but the paint on the down tube and top tube is fairly scratched up from the cables, and the chainstays have some spots where the paint is rubbed off. I really want to address these areas before rust starts to develop.

80% of the paint is still in nearly pristine condition. It has the coolest dual color quality - drab green in flat light and iridescent blue when the light hits it right. I've been warned that Bianchi celeste paint is notoriously inconsistent, so I would hate to touch up the bad spots and have a patch work paint job, and I'm even more hesitant to repaint the whole frame. I think the bad areas are too large to just touch up with some clear nail polish either.

What are the pros and cons of just applying a clear coat to the entire frame without doing any re-painting? Would this offer enough rust protection? What is the best application method - do spray cans work well? Any particular prep work needed on the frame first?

I don't have the $ to have this done professionally, but I bad don't want to screw up such a nice looking bike.

Thanks - todd
car waxlaffeaux
Sep 16, 2003 1:48 PM
Get a jar of paste car wax and apply it to the frame. Let it dry and rub it off - just like it were your car. It will be protected from rust.
car waxBigFatSal
Sep 17, 2003 6:01 AM
I think I'd agree with the wax solution, especially if you don't think you can match the Bianchi paint which sounds like it might be one of those iridescent paints. If you just try to put a clear coat on top of an existing gloss finish, the clear coat won't be able to grip the smooth finish very well and will likely peel off down the road. To help a clear coat adhere you'd really have to take some fine sandpaper to the entire frame and rough up the surface, providing an adhesion-friendly surface - but, honestly, that sounds risky given this special paint that Bianchi appears to be using.... So, the wax may be your best bet.
Exactly what I was looking for....TNSquared
Sep 17, 2003 8:03 AM
This is an easy and obvious solution, but not one that would ever have occurred to me. You confirmed my concerns about repainting or clear coating, but applying car wax is something that even I can't screw up (hopefully!) :-)

Thanks much to both of you.
RU sure?JFR
Sep 17, 2003 12:10 PM
I don't know about "paste" wax, but I've used normal liquid car wax on freshly scratched car paint and still had rust develop.

Maybe I shoulda re-waxed the scratch more often than I did (although, I was fairly consistant until I saw the rust) or maybe there's something to this "paste" wax you speak of.
yeplaffeaux
Sep 17, 2003 1:31 PM
Paste waxes form a protective barrier. I'm not sure what the liquids do, but I'd guess that they are more of a polish.