How to Clean Mini Blinds With Sun Damage

When your vinyl mini blinds turn from white to milky yellow, it's the result of sun damage.
A chemical reaction between sunlight and vinyl causes mini blinds to turn yellowish.A chemical reaction between sunlight and vinyl causes mini blinds to turn yellowish.
Cleaning the mini blinds will not erase these effects but will let you squeeze more life out of the blinds. Sun damage also makes the vinyl slats quite brittle, so use specific cleaning techniques for wet scrubbing to avoid breaking them.

Step 1

Vacuum the dust from the mini blind slats using the brush attachment. Use the wand to turn the slats closed, then gently vacuum in a side-to-side motion. When you finish one side, use the wand to turn the slats so they all face the other direction. Repeat the cleaning with the vacuum extension.

Step 2

Fill your bathtub with at least 4 inches of warm water. Pour in approximately 3 capfuls of the ammonia cleaner while the tub is filling up.

Step 3

Extend the blinds fully, and turn the wand so that the slats are slightly open. Unhook the wand. Remove the blinds from the mounted hangers on the window. Gently carry the blinds to the bathtub, and lower them into the water.

Step 4

Put on the rubber gloves to protect your hands. Wet the sponge and kneel beside the tub.

Step 5

Wipe down both sides of the mini blind slats, starting at the top slat and working your way to the bottom slat. Use gentle pressure so you don't snap the already weakened vinyl. Keep the slats as straight as you can and avoid bending them. Move the mini blinds around carefully as you clean to give yourself the best access to each slat.

Step 6

Drain the soapy water from the tub without removing the mini blinds. Refill the tub with clean water and swish it around to rinse the cleaner off the blinds. Repeat this step as necessary until all soapy residue is gone. If you have a handheld shower attachment, this may come in handy to rinse off the blinds.

Step 7

Set the large towels on the ground, or outside on the grass if the weather permits. Gently remove the blinds from the tub and lay them out, fully extended, on the large towels. Use the small towels to blot up as much of the moisture as you can. Let the blinds dry on the towels completely before reinstalling.

Things You Will Need

  • Vacuum with brush attachment
  • Ammonia cleaner
  • Sponge
  • Rubber cleaning gloves
  • 4 large towels
  • 2 small towels


  • An alternate method for drying the slats is to drape them carefully over a sturdy object, such as an outdoor clothesline, the railing of a patio or even a shower curtain rod. If you are doing this indoors, place towels underneath to protect your floor from moisture.


  • Do not use cleaner with bleach on sun-damaged mini blinds. The bleach will weaken the fabric cording that ties the unit together and may cause them to break sooner.
  • The blinds must be completely dry before rehanging; otherwise you run the risk of creating moisture pockets where mildew and mold can thrive.

About the Author

Jenna Marie has been editing and writing professionally since 1993. Her editing background includes newspapers, magazines and books, and her articles have appeared in print and on websites such as Life123 and AccessNurses. She specializes in writing about parenting, frugal living, real estate, travel and food. Her nonfiction book was published in 2008. She earned a Bachelor of Science in journalism from Utah State University.