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--- Begin Message ---Hi Rod, The advantages for me is that they look good and take a handsome patination if regularly cleaned and waxed with a conservators' product. (Details on request). Corrosion is a main problem, perhaps summed up by "I am a sundial...ordinary words Cannot convey my thoughts on birds!" Hilaire Belloc ...... and their corrosive droppings. :-( I sometimes suspect that my local feathered friends feed on acidic epoxy glue! ;-) Stainless steel (S316 grade) makes an excellent weatherproof dial if the surface is lightly textured to reveal a shadow and if you can find an etcher/engraver who will 'cut' it deeply enough. My preferred surface treatment was a Random Orbital sander with a worn medium paper which MUST be in contact before switching ON then lifted away before switching OFF to avoid start/stop 'swirls'. This tool is widely used on car body finishing. Tony M. P.S. Now that I know that others can view my messages I have no need to read them myself. ----Original Message---- From: rodwall1...@gmail.com Date: 05/06/2017 1:58 To: <sundial@uni-koeln.de> Subj: Brass or Bronze for Sundials. Hi all, For a sundial that will be out in the weather. What is the advantage/disadvantage of using brass or bronze? Regards, Roderick Wall. --------------------------------------------------- https://lists.uni-koeln.de/mailman/listinfo/sundial
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