How to Whiten Windows

Written by kaye wagner
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How to Whiten Windows
Put film on windows to whiten them and make them opaque. (Photos.com/Photos.com/Getty Images)

There are many reasons why you might want to whiten your windows or make them opaque. You might want more privacy in a bathroom or bedroom window, or you might want to diffuse the light for a greenhouse. No matter what your reason, whitening windows is possible and requires a few simple but key steps. Purchase etching cream at a craft, hardware or paint-supply store.

Skill level:
Moderately Easy

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Things you need

  • Liquid dish soap
  • Sponge
  • Soft cloth
  • Painter's tape
  • Gloves
  • Goggles
  • Foam brush
  • Etching cream
  • Paper towels
  • Washing soda
  • Window cleaner

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Instructions

  1. 1

    Clean the glass thoroughly with soap and water. Scrub the glass with the rough side of a sponge and dry the glass thoroughly with a soft cloth. Don't use paper towels, as they will leave behind small pieces of paper.

  2. 2

    Use painter's tape to cover any areas you don't want to whiten. Tape off the window frame.

  3. 3

    Put on gloves and goggles to protect yourself from the etching cream, which has hydrofluoric acid in it that can irritate your eyes and skin.

  4. 4

    Dip a foam brush into the etching cream and apply a thick layer to the glass. Work the layer so that it is even across the entire window.

  5. 5

    Let the etching cream sit for several minutes according to the manufacturer's instructions. This could be anywhere from 15 to 30 minutes.

  6. 6

    Wipe off the etching cream from the window with paper towels.

  7. 7

    Wash the window with washing soda and water. This will neutralise the paste.

  8. 8

    Remove the painter's tape from the window and wash the window with window cleaner. Let the window dry completely.

Tips and warnings

  • Put the paper towels with etching cream on them into a plastic bag before throwing them away.
  • Never leave the acid unattended as it can be toxic for children and pets.

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