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I'm looking for suggestions of materials to use for low relief  
sculptural elements to be added to outdoors signs (other than hot  
bronze casting) that will not degrade in the elements.  Is hot bronze  
casting the best for long term durability or are there other  
materials out there that work well in the elements?  Any suggestions  
out there?  Also, can you also tell me what supplier carries the  
materials that you are suggesting as well.  My plan was to bolt them  
into phenolic resin signs with the bolt being embedded in the  
material from the back so the bolt won't show.  This sign will be up  
10 years or so.   Also, where can I find tamper proof bolts to use?

Thanks!
Julie Molina

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