hi: you may want to try heating the Stainless Steel it with a torch. I believe this would change the surface color. a 2nd suggestion is to knurl or cross-hatch the surface. or a combination of both Do a sample first. Thanks ..... Randy ________________________________
From: [EMAIL PROTECTED] on behalf of Mac Oglesby Sent: Wed 4/23/2008 8:59 PM To: Sundial Mailing List Subject: Request for suggestions Hello friends, Does anyone know a simple, safe, and inexpensive method to permanently darken stainless steel? I'm involved in a project to create a vertical decliner (48 inches wide by 30 inches high by 1 inch thick cast concrete) sundial for our town's Municipal Center showing hours until sunset. For the hour lines we intend to use 1/4 inch square stainless steel bars imbedded into the concrete. Test castings show that, when sunlit, the imbedded bars appear dark from most viewing angles, but that from some angles reflect light so as to almost disappear. Although the changing appearance of the hour lines might be considered a positive feature, I'd rather the hour lines always looked dark. Thanks for any suggestions. Mac Oglesby --------------------------------------------------- https://lists.uni-koeln.de/mailman/listinfo/sundial
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