quote Jonathan Wallace:
I have a client who is looking for flat cut satin anodized lettering. Does anyone know of a supplier of such material or what best matches this type of finish? We have a copmany who can cut almost anything so even a supplier of a sheet of this type would be good.
Jonathan, that material is primarily used by engravers, these guys both sell it:
http://www.suregrave.com/anodalum.html
or these
http://www.engravamet.co.uk/2products.php
Unless you go to a specialist supplier like the above companies you will pay an arm and a leg for it.
However, you client maybe making a big mistake, once cut, the edges will be raw silver aluminium, open to the weather and will corrode, adding decent, strong fixings will be a nightmare.
I would advise black dibond, gives these guys a call ask for Nancy:
http://www.trade-letters.com