What is the reason for applying toothpaste to the car rearview mirror?

Applying toothpaste to the rearview mirror to prevent rain will keep the glass clear at all times.

Toothpaste soap destroys the surface tension of water.

When soap molecules enter the water, the hydrophilic parts with polarity destroy the water molecules.

The surface tension of the water is reduced, so that the water molecules are evenly distributed on the surface of the treated glass and attached to the glass in the form of a water film, and the more rain hits the glass, the larger the water film formed.

Introduction to the rearview mirror:

The compartment is generally equipped with anti-glare reversing mirror, which is composed of a special mirror and two photodiodes and an electronic controller, and the electronic controller receives the front light and rear light signals sent by the photodiode. If the light shines on the rearview mirror, if the rear light is larger than the front light, the electronic controller will output a voltage to the conductive layer.

The voltage on the conductive layer changes the color of the mirror electrochemical layer, the higher the voltage, the darker the color of the electrochemical layer, at this time, even if the strong irradiation light shines on the reversing mirror, it will show dark light and will not be dazzling when reflected to the driver's eyes by the anti-glare reversing mirror.

Toothpaste on the rearview mirror can destroy the tension of the water, when the water hits the glass, it can form a certain water film, maintaining the clarity of the glass, but this method can only last for one or two hours. Applying toothpaste to the rearview mirror, i.e., the rearview mirror, can be used as a rain protection, but only for a short time!

Car headlights, after a long time, they will be yellow and dark, you can also apply toothpaste and wipe them with a paper towel! Then rinse it off with clean water! A brand new headlight comes out, which is also very practical!

Apply toothpaste to the rearview mirror, and this effect will be used, so try it when you go home after reading it! Life Tips, Life Tips, Life Tips, Life Tips.

Rainproof. Soap, toothpaste and soap can break the surface tension of water. When the soap molecules enter the water, the polar hydrophilic place position will destroy the attraction between the water molecules and reduce the surface tension of the water, so that the water molecules are evenly distributed on the surface of the treated glass and attached to the glass in the form of a water film.

If you apply toothpaste, it won't get water droplets on the rearview mirror on rainy days.

Applying toothpaste to the rearview mirror to prevent rain will keep the glass clear at all times.

Toothpaste soap destroys the surface tension of water. When the soap molecules enter the water, the polar hydrophilic parts will destroy the attraction between the water molecules and reduce the surface tension of the water, so that the water molecules are evenly distributed on the surface of the treated glass and attached to the glass in the form of a water film.

How to use:

1) When the driving route such as stopping, starting, overtaking, turning, and turning is about to change, the corresponding driving signal is given first, and at the same time, we must pay attention to the rearview mirror, and keep abreast of the traffic conditions on both sides and the rear to prevent sudden situations from being caught off guard.

2) Adjust the position and angle of the rearview mirror before driving. In driving, due to the driving vibration of the vehicle, it is easy to cause the position and angle of the rearview mirror to change, which should be observed and adjusted in time.

3) In places where there are many pedestrians, such as markets and intersections, drive slowly and pay attention to the rearview mirror.

Applying toothpaste to the rearview mirror of the car is really rain proof. Because toothpaste can destroy the tension of water when applied to the glass of the rearview mirror, when the water hits the glass, it can form a certain water film and maintain the clarity of the glass, but this method can only last for one or two hours.

Rearview mirror rain protection method.

1. Soap, toothpaste and soap can destroy the surface tension of water. When the soap molecules enter the water, the polar hydrophilic place position will destroy the attraction between the water molecules and reduce the surface tension of the water, so that the water molecules are evenly distributed on the surface of the treated glass and attached to the glass in the form of a water film.

2. Installing rain eyebrows on the rearview mirror is a more common practice, which is convenient and cheap, and the effect is more significant, especially suitable for car owners who live in rainy areas. However, there are also certain limitations of rain eyebrows, because in terms of style, there are generally two kinds of rain eyebrows: outer installation and inner installation. The outside side is directly glued to the rearview mirror, while the inside side is inserted in the gap between the rearview mirror and the frame;

3. Coating the rearview mirror with water repellent can also maintain a clear vision of the rearview mirror, and there are many glass water repellent on the market The key ingredient is silicone oil, which has the effect of not sticking to the surface of the rearview mirror by changing the tension of water on the surface of the glass. When rainwater is stained on the glass with water repellent, the small water droplets will basically form a round water droplet, which can be separated from the rearview mirror by shaking or blowing the water droplets.

It is useful to apply toothpaste for car rearview mirrors to resist waterproofing, toothpaste can destroy the surface tension of water, and adhere to the glass in the form of a water film, so that the glass can maintain a better clarity.

It didn't work at all It just rained, I painted it and dried it, and the mirrors were still full of water droplets.