Heat from welding can tint steel too, but I guess with lasers the effect can be controlled.
This topic reminds of Chromoskedasic printing, where black&white photographic paper is chemically treated so that it will scatter light and generate abstract/psychedelic colour effects. http://chemigramist.com/chromoskedasic.html example http://www.loreal.com/_en/_ww/loreal-art-science/bronzefigure-2005.aspx Harry ----- Original Message ---- > From: Jed Rothwell <[email protected]> > To: [email protected] > Sent: Tue, December 29, 2009 9:24:51 AM > Subject: RE: [Vo]:OT: Change Metal Surface to Reflct any Color (Not plating > or Paint) > > This is great stuff! Amazing. > > Summary: they are changing the color of metals by changing the surface > structure. > > - Jed __________________________________________________________________ Get a sneak peak at messages with a handy reading pane with All new Yahoo! Mail: http://ca.promos.yahoo.com/newmail/overview2/
