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Aluminum signs need to be non-conductive

I have a situation with regards to safety signage used by the railway industry. We manufacture signs using aluminum, but this is conductive and a new sign is required for use next to the live electrical rail line. Is there any way I can make this sign / aluminum non-conductive and ensure safe use.

Many thanks,

Paul Morton
- London, United Kingdom
2003

Try anodizing.Good luck

Khair Shishani
aircraft maintenance - Al Ain, UAE
2004

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