|Repainting a titanium frame||ELAY|
Oct 30, 2002 9:23 AM
|Any special considerations when stripping and repainting a titanium frame? ... the frame has a carbon seat stay.
Powder coating ok?
Any suggestions/comments would be appreciated.
Oct 30, 2002 9:45 AM
|The carbon seat stay poses an issue. If the frame is painted (versus powder coated), chemical strippers can attack the gelcoat on the Carbon bits, so be careful. I've never tried stripping anything powdercoated, so I can't help you there. I imagine that it isn't esy. Anyway, assuming that you can get the paint off either by being careful with the stripper or by using mechanical means, going back with powdercoating is probably out because the finish is baked on at high temperature -- again, probably an issue for the carbon fiber. This last bit of information is based on having been told by the guys at Dean that they powdercoat their frames and THEN glue in the carbon seat stays.|
|Two cautions and a question ...||Humma Hah|
Oct 30, 2002 9:46 AM
|... First, the question: why would a Ti frame even NEED paint. If ya got it, flaunt it!
Titanium will withstand environmental effects that will trash steel -- it is so corrosion-resistant that it actually stands up BETTER in seawater than in air!
Two things will cause it to develop cracks.
1) Chlorinated solvents such as Perk, trichloroethane, methlene chloride, etc., and probably the brominated equivalents.
2) any contact with cadmium (sometimes used as a corrosion-resistant coating).
|I would say no on PC||Lone Gunman|
Oct 30, 2002 9:47 AM
|That frame has to go in an oven for about an hour or so @ 350 to melt the PC, your CF may melt with it or weaken it structuraly. (Glue) Doubt that a PCer would do it knowing anything about CF.|
|re: Repainting a titanium frame||terry b|
Oct 30, 2002 11:39 AM
|Not a problem PCing titanium but you cannot do the carbon. My steel/CF bike was PCed before the carbon rear was mounted. Wet paint is your best bet. I had my frame done by Spectrum http://www.spectrumpowderworks.com and they did a great job. They have some wet paint alternatives in their web site gallery.|| |