Content

• Steps
• What you need

Getting rid of dents in a car can sometimes be quite expensive, especially if you go to a car care and beauty garage. However, some indents that are not too severe can be corrected and removed with a few household items like a hairdryer, dry ice or a compressed air spray. Read the article to learn how to fix dents in a car with these items.

Steps

Part 1 of 2: Preparing to fix the dent

1. 

   Identify the dent. This method is especially helpful in removing small to medium dents, sometimes the car has more dents than you might think. Check the vehicle carefully to identify all dents.

2. 

   
   
   Evaluate the dent. This method can handle indentations not along the edges of a wide plane but on the surface plate in the luggage compartment, on the roof, door, on the bonnet, on the fenders.
   • For best results, you should apply this method to shallow dents that do not have many wrinkles or peel off paint, which should be on a surface at least 7.6 cm in diameter.

3. 

   
   
   Prepare the necessary tools to treat the dent. You will need a hairdryer, mechanical gloves (if not, replace them with thick rubber gloves) to handle dry ice or liquid compressed air, foil, dry ice pack or compressed air spray. The following is few What you need:
   • Mechanical insulating rubber gloves.
   • Compressed air spray is full (or nearly full).
   • Dry ice bag.
   • Hair dryers that adjust the temperature, such as "Low" - "Medium" - "High" or "Cool" - "Warm" - "Hot" (Hot).
   • Silver paper.
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Part 2 of 2: Warming and cooling the recessed area

1. 

   
   
   Blow hot air into the concave surface plate. Turn on the dryer and blow heat into the dent and surrounding area continuously for 1-2 minutes.
   • The dryer should be turned on medium and placed 12.5 - 17.8 cm away from the surface of the car. Do not blow too hot air to avoid damaging paint in recessed areas due to high temperature.

2. 

   Isolate the concave area on the surface plate (if possible). Place the foil over the dents. This step is only necessary if you are using dry ice instead of compressed air. The purpose of this action is to keep the upper area warm while also protecting the paint as dry ice can damage the coating.

3. 

   Wear mechanical gloves. Gloves will protect you from extreme low temperature damage when your skin comes into contact with dry ice or liquefied compressed air.

4. 

   Apply dry ice or spray liquefied compressed air on the concave surface. The sudden change in temperature from warm to cold causes the surface of the car to expand first (when it warms up) and shrink afterwards (when it cools).
   • If using dry ice, hold the ice cube in one hand and gently rub the foil over the dented area.
   • With a compressed air spray, turn it upside down and spray to cover the surface of the concave area with liquid ice. This method applies several basic laws of physics: the pressure, volume, and temperature of a gas are all related. Although air exiting the canister under normal conditions will not retain its temperature, if you turn the bottle upside down and spray it, the air will still be cool.
   • Whichever method you apply, the implementation time is also quite short. Surface panels on most modern cars are made of thin and light materials with the ability to cool very quickly. It will only take 30-50 seconds (even faster) for the car to return to its original shape.

5. 

   Wait a minute. After applying dry ice or spraying compressed air on the surface for a while, you should hear a "popping" sound, and the dent will disappear. The sudden change in temperature will cause the material to return to its original form.
   • If you use dry ice, remove the foil and throw it away after the dent is gone.
   • If you spray liquid ice or compressed air onto the dent, wait for the white foam to dissolve from the surface of the vehicle, then wipe off the rest with a soft cloth.

6. 

   Repeat the process if necessary. For certain indents, one test may not be enough. If you see an improvement but the dent is still present, you can start the heating and cooling process again. However, don't overdo this process (especially for a day). Although a sudden change in temperature can restore the car's appearance, extreme cold can potentially damage the paint. advertisement

What you need

• Dryer multiple modes
• Thick mechanical gloves
• Dry ice pack or compressed air spray
• Silver paper
• Soft towels