As experienced industrial and commercial painting contractors, we at Ghaster Painting & Coatings often get asked for our opinion on color selection.  While a business may have a color scheme in place for general painting, when it comes to the specifics of industrial painting, customers often want to know what colors are appropriate for specific areas.  We are happy to help you with any specific questions you might have but Painting Pro Times also aprovides an exhaustive review of color selections according to specific areas of an industrial or commercial property so that you can easily select what colors you need for your space.


  • Safety Yellow: Physical Hazards (low beams, railings, posts, etc.). Cranes and Hoists, and Material Handling Equipment.
  • Safety Blue: Electrical Controls, Special Repair Areas (scaffolding, compressors, dryers, valves, ovens ,etc.).
  • Safety Green: Safety and First Aid (first aid kits, gas masks)
  • Safety Purple: Radiation hazards (burial storage areas, disposal cans, contaminated equipment, containers, etc.)
  • Safety Orange: Use to identity dangerous machine parts, safety starting buttons, gears, rollers, etc.
  • Safety Red: Use to identity Fire Protection Equipment (exit signs, alarm boxes, extinguishers), Danger (hazardous contents, barricades, etc.), and Stop (emergency buttons and switches on machinery).

ASA Recommended Markings

  • Red: For fire fighting equipment, fire protection apparatus and sprinkler systems.
  • Yellow: For hazardous materials which are flammable, toxic, poisonous, corrosive, high temperature or under high pressure.
  • Green: For non-hazardous materials, non-poisonous, non-flammable, moderate temperature, under low pressure, such as drinking water, syrups, glycols, etc.
  • Blue: For protective materials, for preventing or reducing hazards of dangerous materials (other than fire fighting).

Suggested Banding for Specific Materials
The following color banding of pipes, to identify specific materials more readily, is suggested for industry as a preferred standard. Pipes which are painted The same color as The room should be banded every twenty feet and at least once in every room.

  • Acid or Alkali – Yellow-Red-Yellow
  • Fuel Oil – Yellow-Black-Yellow
  • Ammonia – Purple-Red-Purple
  • Gas – Yellow-Brown-Yellow
  • Brine – Label Only
  • Hot City Water – Green-Yellow-Green
  • Cold City Water – Green
  • Hot Lake Water – Blue-Yellow-Blue
  • Cold Lake Water – Blue
  • Oxygen – Green Line-Yellow Stripe
  • Compressed Air – Green-Aluminum-Green
  • Process Oil – Yellow
  • Electrical Conduit – Gray
  • Steam, Hi-Pressure – White-Orange-White
  • Fire Protection – Red
  • Steam, Lo-Pressure – Orange-White Orange
  • Freon – Purple-Yellow-Purple
  • Waste – Black

Source: Painting Pro Times. August 22, 2016. Colors for Industry

Author Kirsten Ghaster

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