Tradeoffs In Outdoor Housings? Material Choice

I have seen select cameras from Honeywell and others use Polycarbonate Housing. The majority however still use steel/aluminum. My questions:

  • What are the benefits and drawbacks of using Polycarbonate Housing?
  • Is there a specific type of Polycarbonate material that is preffered over another for camera housing use
  • Is there a type of certification for the Polycarbonate material so you know that you are getting in fact real polycarbonate versus cheaper ABS
  • Any idea on rough price differences between ABS, Polycarbonate, Metal and Aluminum for a typical outdoor dome camera

Thanks in advance!

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