How to Remove Hard Water Spots on Powder Coating

Written by cody sorensen
  • Share
  • Tweet
  • Share
  • Pin
  • Email
How to Remove Hard Water Spots on Powder Coating
Keep powder coated pipe out of the weather if possible. (Jupiterimages/ Images)

Unlike liquid paint, powder coating is sprayed onto a surface and then heated until the powder particles melt together. This process makes powder coating much harder than paint. This hardened paint film makes for an easy surface to clean, without damaging the finish. Water can sometimes get on a powder coated surface and then evaporate. After it evaporates, the minerals in the water remain on the surface, forming hard water spots. An acid-based cleaner works well for hard water spot removal.

Skill level:

Other People Are Reading

Things you need

  • Lime scale remover with a spray bottle applicator
  • White, nylon scrub pad

Show MoreHide


  1. 1

    Spray the hard water spots with a lime scale remover that is high in phosphoric acid. This solution can be found at janitorial supply stores. It has a higher percentage of acid than the grocery store cleansers.

  2. 2

    Allow the lime scale remover to sit on the hard water spots for 15 minutes.

  3. 3

    Scrub the treated areas with a white, nylon scrub pad until the water spots are removed. Repeat the process for extremely stubborn water spots.

  4. 4

    Rinse the scrubbed area with water to remove all traces of acid. Wipe the area dry with paper towels to avoid more hard water spots.

Tips and warnings

  • Always follow the manufacturer's warnings and recommendations before applying phosphoric acid solutions to any surface.

Don't Miss

  • All types
  • Articles
  • Slideshows
  • Videos
  • Most relevant
  • Most popular
  • Most recent

No articles available

No slideshows available

No videos available

By using the site, you consent to the use of cookies. For more information, please see our Cookie policy.