Emissivity is one of the most important factors when designing a radiant oven. Here are the emissivity ratings for some common materials:
  • Oil-Based Paint - 0.90 emissivity.
  • Plastic  - 0.90 emissivity.
  • Rubber - 0.90 emissivity.
  • Polished Aluminum - 0.03 emissivity.
  • Oxidized Aluminum - 0.24 emissivity.
  • Water - 0.93 emissivity.
  • Wood - 0.90 emissivity.
  • Polished Silver - 0.010 emissivity.
  • Glass - 0.800 emissivity.
  • Polished Steel - 0.070 emissivity.
  • Oxidized Steel - 0.800 emissivity.
  • PVC - 0.920 emissivity.
  • Polished Copper - 0.020 emissivity.
  • Oxidized Copper - 0.600 emissivity.
 

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