How to Keep Windscreens Frost-Free

Written by larry parr | 13/05/2017
How to Keep Windscreens Frost-Free
Frost on a windshield can be difficult to remove and cause driving problems--but keeping windscreens frost-free is relatively simple. (frozen car image by Stephen Gibson from

Frost on your windshield is not only a pain in the neck (and back and arms) to scrape off, it can also pose a danger when driving if the frost obscures your view of the road. Fortunately, there are a number of simple and cost-effective methods for keeping your windscreen frost-free.

Mix three parts vinegar and one part water in a spray bottle and clean your windshield by spraying it with the solution and then wiping the glass dry with a paper towel.

Spray the vinegar and water solution on your clean windscreen after the vehicle is parked for the evening. Do not wipe off. Allow the sprayed solution to remain on the windscreen.

Check the windscreen the following morning. It should be frost-free or require only a cursory wipe down with a paper towel.

Remove thick ice build-up on a windscreen by spraying a mixture of two parts rubbing alcohol and one part water and then scraping with a normal scraper.

Prevent most frost and ice build-up by covering the windshield at night with a tarp or a folded sheet held in place with weights or bungee cords. Be advised that covering your windscreen can pose problems in heavy-snow areas, as the tarp may become frozen to your windscreen or buried under excessive amounts of snow.

Wipe salt on your windscreen to decrease the temperature at which frost forms. Wipe a sponge soaked in salt water on your windscreen before retiring for the evening, or rub a cloth bag filled with salt on your damp windscreen once the car is parked for the evening. In the morning, a brisk buffing with a cloth or paper towel will remove the slight salt residue.

Things you need

  • Vinegar
  • Spray bottle
  • Water
  • Paper towels
  • Rubbing alcohol
  • Windshield scraper
  • Tarp or folded sheet
  • Bungee cords or weights
  • Salt
  • Sponge
  • Cloth bag

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