---
title: "This Cheap, Homemade De-icer Recipe Will Clear Your Frosty Windshield in Minutes"
description: "Don't wait for your car's defroster to kick in! Mix up this cheap, 3-ingredient DIY de-icer and you'll be on the road in no time."
date: "2017-02-01"
modified: "2025-02-19"
authors:
  - name: "Steffani Cameron"
    job_title: "Contributing Writer"
    link: "https://www.bobvila.com/authors/steffani-cameron/"
  - name: "BobVila.com Staff"
    link: "https://www.bobvila.com/authors/bob-vila-staff/"
url: "https://www.bobvila.com/articles/homemade-de-icer/"
categories:
  - "DIY"
  - "Easy DIY Projects"
  - "Repair & Maintenance"
tags:
  - "How To"
  - "News"
---

# This Cheap, Homemade De-icer Recipe Will Clear Your Frosty Windshield in Minutes

![Person sprays de-icer onto a frosty car windshield.](<https://www.bobvila.com/wp-content/uploads/2017/02/homemade-de-icer_feature.jpg>)
*Photo: Tom Fenenga for BobVila.com*

Have you pulled out of your driveway lately with a frost-covered windshield, hoping that the defroster will kick in as you cruise out of your neighborhood? We're all in a hurry to get to where we're going, but for safety’s sake, take the time to properly de-ice your car’s windows. Clear visibility is important anytime you’re driving, but when snow and ice are involved, it’s best to be extra vigilant. This 3-ingredient de-icer recipe is super cheap, easy to make, and will get you on the road in no time.

## Homemade De-Icer Recipe

![](<https://www.bobvila.com/wp-content/uploads/2017/02/homemade-de-icer_materials.jpg>)

- **1 cup water**
- **2 cups isopropyl alcohol**
- **3/4 teaspoon dish soap**

Combine all ingredients in a spray bottle and shake well.

**Why this recipe works:** This de-icer's active ingredient is [rubbing alcohol](<https://www.bobvila.com/slideshow/17-clever-household-uses-for-rubbing-alcohol-50454/>), which you can buy at drugstores for around $2.50 a pint. Also known as isopropyl and isopropanol, it has a freezing point of -128 degrees Fahrenheit, so it won’t refreeze once the windshield has been cleaned. Dish soap improves the spreadability of the mixture.

## How to Use Homemade De-icer to Defrost Car Windows

This concoction is just as easy to apply to your car's windows and windshield as it is to make. Keep a clean cloth handy to wipe excess spray off your windows; depending on how frosty your windows are, you might also need an ice scraper to coax the ice off the glass.

### Step 1: Mix the de-icing solution.

![Woman pours isopropyl alcohol into a spray bottle.](<https://www.bobvila.com/wp-content/uploads/2017/02/homemade-de-icer_mix.jpg>)
*Photo: Tom Fenenga for BobVila.com*

Fill a spray bottle with two parts rubbing alcohol to one part of water.

![Woman measures dish soap into a measuring spoon above a spray bottle.](<https://www.bobvila.com/wp-content/uploads/2017/02/homemade-de-icer_dish.jpg>)
*Photo: Tom Fenenga for BobVila.com*

Add ½ teaspoon of liquid dish detergent for every 2 cups of solution. Shake well. Label your de-icer so you don’t get it mixed up with your other DIY cleaners.

### Step 2: Coat the windshield and windows with spray.

![Woman sprays homemade de-icing mixture on an icy windshield.](<https://www.bobvila.com/wp-content/uploads/2017/02/homemade-de-icer_spray.jpg>)
*Photo: Tom Fenenga for BobVila.com*

Generously spray the mixture onto the icy windshield and windows. Wait a minute or so as it softens the ice, or melts it altogether.

**PRO TIP**

This homemade de-icer also works on frozen car door locks: Spray it on the lock, wait 10 to 20 seconds to melt the ice, insert your key, and your lock should move freely. (If you do this frequently in the winter, don’t forget to occasionally spray a little [WD-40](<https://www.bobvila.com/articles/wd-40-uses/>) or other lube into your lock, or on your key before inserting it into the lock, to keep the lock’s inner mechanisms functioning smoothly.)

### Step 3: Scrape away excess ice.

![Woman uses an ice scraper to brush melting ice off windshield.](<https://www.bobvila.com/wp-content/uploads/2017/02/homemade-de-icer_scrape.jpg>)
*Photo: Tom Fenenga for BobVila.com*

For extra-heavy ice on windows, you may need to do a little scraping. If that's the case, [use an ice scraper or another implement](<https://www.bobvila.com/articles/diy-ice-scraper/>) to clear away the thicker patches.

### Step 4: Wipe the windshield clean.

Turn your windshield wipers on and with a couple good swishes, your windshield should be de-iced, clean, clear, and ready for some driving! If you’ve applied your mixture to other windows, use a soft cloth to wipe them clean. While isopropyl alcohol that’s been diluted as recommended here will not damage car paint, wipe down any areas of your car’s body that may have been dripped on, just to be safe.

### Step 5: Prevent future visibility problems.

To keep your windshield wiper lines clean and clear of ice, mix 1 cup isopropyl alcohol into ½ gallon of windshield wiper fluid and fill your under-the-hood reservoir. Alternatively, you can purchase a [de-icing windshield wiper solution](<https://www.amazon.com/Prestone-Windshield-Protection-Number-Service/dp/B09NMHPCSV/?tag=bv-serv-homemade-deicer-20>). Either will keep your glass ice-free when you need to clean your windshield of sandy, salty snow-splatter spat up from vehicles ahead of you on roadways, and will help keep streaks to a minimum. Keep this de-icer in your car, along with other [winter emergency supplies](<https://www.bobvila.com/articles/winter-emergency-supplies-to-keep-in-your-car/>), so you'll always have a clear view!

## Author
Steffani Cameron is a journalist and photographer. She's written for [Apartment Therapy](<https://www.apartmenttherapy.com/>), [The Kitchn](<https://www.thekitchn.com/authors/steffanicameron>), [BuildDirect.com](<https://www.builddirect.com/>), and many other outlets. The daughter of a contractor and realtor, she grew up learning all about the challenge of owning and improving homes, from how to properly mount a towel rack to the proper way of prepping for a paint job. After 20 years of running her own home, she goes nowhere without a multitool and duct tape in her gear kit... next to a compact coffee press.

### Author social links  
[Twitter](<https://x.com/SnarkySteff>)