What are the problems to pay attention to when washing a car?

Do not use detergents indiscriminately. There may be highly corrosive stains on the car body, such as asphalt, oil stains, bird and insect droppings, etc., which are difficult to clean and must be done in the right way. When cleaning body oil stains, gently wipe with a sponge dipped in a little kerosene or gasoline, and then apply polishing paste to the rubbed area to make it shine as before.

If there are dead insects and other animal and plant juices on the body, they should be soaked with soapy water first; Then wash with a sponge soaked in water. There are oil stains on the steering wheel, lamps, profiles and rubber parts, which can only be cleaned with ordinary soapy water, not gasoline, stain removers and thinners.

When washing your car in winter, you should pay special attention to it, and if the weather is very cold, you should not wash your car, because the cold weather will cause the water on the car to freeze, which will damage the paint surface of the car.

Close the windows, don't choose to wash the car in rainy and snowy weather, and don't have too high water pressure for the water gun, which is not good for the paint.

Do not wash the engine compartment with a water gun when washing the car, as this will clean the engine compartment very quickly and effectively cool the engine. In fact, it is a big mistake to do this, washing high-temperature objects with cold water, due to the huge temperature difference, will cause damage to the metal structure of the car, especially the internal structure of the machinery, and even crack. So it's quite unscientific to cool the engine in this way.

When washing the car, you must not use laundry detergent, soapy water or dish soap to replace the special car wash liquid in order to be cheap, because these things have strong alkalinity, if you often use it to wash the car, the paint of the body will fall off over time, and the special car wash liquid is neutral and will not cause damage to the car paint.

If you drive the car to a car wash or you have the conditions to wash it, you must not wash the car directly with water when the body temperature is high, such as just driving back, or the car has just been exposed to the sun, etc., you must not wash the car with water, if you wash the car directly with water, it will cause serious damage to the sheet metal and paint of the vehicle. Therefore, it is generally not necessary to wash the car when the body temperature is high.

Under normal circumstances, when the car just stopped, including car tires, brake discs and other auto parts are still at a high temperature, if you directly wash with cold water at this time, thermal expansion and contraction, there will be some damage to these auto parts at high temperatures. Therefore, in general, it is recommended to start cleaning the interior of the car first, and then flush and clean the external parts at high temperatures after they have cooled down.

When washing the car with high pressure, the water pressure of the water gun should not be too high, because if the water pressure is too high, the water speed will also be very urgent, and while washing away the sand or some particles, it will also cause a strong impact on the surface of the body and wear the paint, so generally the high-pressure water gun should control the water pressure.

Be careful to close the doors and windows, otherwise the water will splash inside when washing the car, which will be difficult to clean up.

When washing the car, try to use softened water to clean it, because if you wash it directly with tap water, the substances contained in the tap water will damage the film layer of the paint surface.

Be sure to pay attention to this engine compartment when riding, I'm going to go for a dip.

Some car owners like to wash their cars with a high-pressure water gun, and it is indeed relatively clean to clean it in this way, but the excessive pressure is very harmful to the paint of the body, and it is not recommended to use a high-pressure water gun to wash the car.

Just wash the car and wash the shell cleanly, and never use a high-pressure gun to wash the engine and other parts under the hood.

Generally, car washers wash the mats in the car with a high-pressure water gun and put them directly into the car, in fact, this is very bad, and the dry mats are very wet in the car.

1. Project background.

With the increasing number of cars, the car wash business has become the fastest-growing segment in automotive services. The traditional manual car wash has been unable to meet the entire market demand, the car wash market will be polarized in the future, the manual car wash will move towards a more professional and cleaner beauty grade car wash, and the traditional car wash store will be replaced by an intelligent fast wash shop, a fully automatic car wash machine.

With its efficient, safe and convenient characteristics, it has gradually become the new favorite of the market.

In the context of a broad market, less competitive pressure and strong consumer demand, the use of automatic car washing machines can reduce operating costs and improve competitiveness. It is expected that the investment period will be about 6-8 months, which has a certain economic feasibility. In the meantime, Hi Ka.

The headquarters integrates R&D, manufacturing, sales and operation, and strives to provide consumers with higher quality automatic car washing equipment, and continues to escort the career of entrepreneurs, so opening a fully automatic car washing machine shop is a worthy consideration and feasible entrepreneurial project.

For us, summer is a hot season, and car cleaning is also frequent, so what problems need to be paid attention to when washing a car? Let's take a look!

There are also tricks to the car wash water flow

From the outside, the car wash is just a simple manual labor, and there seems to be no skill, but the water flow of the car wash is also very particular. A professional car wash will never spray with a high-pressure water gun as soon as it comes up, and generally the first time it must be a slow flow of water, rushing from top to bottom, and taking away the dust particles on the car with water flow. If you start with a high-pressure water gun, it will be equivalent to letting dust particles do it on the surface of the car paint"Frictional movement"。

Sometimes, in order to save trouble, car owners often wash their cars in roadside shops, and those who carry a bucket to wash the car, if you look closely, you will find that there is a lot of mud and sand in their buckets, which is no different from sandpaper to wipe the car. Some car washes are also eliminated from hotels, such towels look new and white, but in fact they are very rough, and they are also harmful to the car.

Laundry detergent is harmful to car washing

Some car owners go to the car wash, if you want to know what the car wash is used to wash your car, you can pinch with your fingers, sniff those bubbles with your nose, then you will find a familiar smell, yes, it is the smell of laundry detergent, and some car washes use laundry detergent to wash the car.

At this time, you should pay attention to the fact that although the laundry detergent is clean, the laundry detergent is an alkaline detergent, which damages the car paint greatly, and if you use laundry detergent to wash the car for a long time, the surface of the car will gradually lose its luster. The corrosion of laundry detergent on car paint is difficult to see in the short term, so many car owners do not know how powerful it is. Special car wash liquid is neutral and will not damage the car paint, but **slightly more expensive than dish soap.

Beware of car washing

Since the rising cost of water in the city, car washing is no longer a separate income, and many car beauty shops and car repair shops have used car washing as an auxiliary project. Some car owners drive their cars to the garage, but the tires are out of gas after the car is washed.

People know that there is something wrong with it, but they can't understand the truth. One who used to work in a repair shop'The employee told us the inside scoop. In some repair shops, in order to take over more business, the owner secretly asked the car washer to quietly puncture the tires while washing the car.

The tool for tying a car is generally a wire sharpened at one end, which is hidden on the car cloth.

Car washing is an indispensable step in the daily maintenance of vehicles, and many car owners will feel that car washing is a simple matter; In fact, not really, if the wrong method is used, it will cause some damage to our car.

Usually wash the car must protect the body paint and appearance, there are highly corrosive stains on the body such as asphalt, oil stains, birds, insect droppings, etc., these stains are difficult to clean, must be done in the right way, when washing the car should be soaked with soapy water first; Car washes cannot be washed with gasoline, stain removers, and thinners. Do not use hard cleaning tools to remove dirt. Such as plastic brushes, razor blades to scrape stains, which can easily damage the paint surface.

Do not touch the surface of the car with dirty hands stained with oil, or arrange oily tools or wipes containing organic solvents on the body, which is easy to cause the paint surface to fade prematurely. And a few caveats: don't wash your car in the scorching sun.

This will leave dry water droplets on the body, which will seriously affect the effect of the car wash, whether the owner washes the car himself or washes the car in the car wash, be careful not to wash the car in the sun; Do not use water other than soft water, including hot water, alkaline water, and water with high hardness. Because these substances can damage the paint. Wash with hard water, which will leave marks and films on the surface of the body after drying; Do not wash the car body with a high-pressure stream of water.

Excessive water pressure can damage the body paintwork. If there is hard dust and sludge on the body, soak it with water first, and then rinse it with water. Apply a dispersed stream of water to spray; Do not add detergent indiscriminately, and do not use laundry detergent, stain remover and low-quality soap when washing.

Because these detergents contain alkali, it may wash away the grease in the paint surface and accelerate the aging of the paint surface; The wiping towel needs to be wiped with qualified products, and the wiping test should be gently wiped from top to bottom in the direction of the water flow, and the test should not be wiped in circles or horizontally.

Car wash needs to pay attention to:

1. Do not wash the car under high temperature and scorching sun, the high temperature and cold water of the body will cause uneven heat and cold damage to the car paint.

2. Do not use a high-pressure water gun to rinse and wipe the body directly with a rag, because the body dirt will be hard particles, and direct cleaning will scratch the car paint.

3. Don't think that you don't need to wash the car in the rainy season, the washing power of the rain can't wash off the dirt of the body at all, and the long-term adhesion of the dirt will be combined with the car paint. Moreover, modern rainwater is weakly acidic, and it will corrode the car if it is not washed for a long time.

4. Don't wash the car too often, it is not recommended to wash the car more than 4 times a month, too often will also damage the surface of the car paint.

5. Do not use household products such as detergent to wash the car, ordinary detergents are generally acidic and alkaline, which will corrode the whole car paint and aging rubber. It is recommended to use special car wash wax as a cleaning agent, such as Medigy, Chefu, Turtle, 3M and other big brand products.

The vehicle must be cleaned in a timely manner to avoid peeling paint and corrosion of the body and components. The following are the situations in which the vehicle needs to be cleaned in time:1

When driving along the coast. 2.When driving on a road sprinkled with antifreeze.

3.When driving on roads with coal tar attached. 4.

When resin, bird droppings, insect carcasses stick to the vehicle. 5.When driving in areas with a lot of soot, soot, ash, iron filings, or chemicals.

6.If the car is heavily contaminated with dust and mud. 7.

After the rain. Things to pay attention to when washing a car:1

Wash in the shade and wait until the car is cool enough before starting. 2.Wash loose dirt with a hose and clean all dirt and road salinity from the bottom of the vehicle and in the recesses of the wheels.

3.Wash the vehicle with a neutral car wash and mix the car wash and key and agent according to the manufacturer's instructions. 4.

Dip a soft cloth in the cleaning solution and gently wipe from top to bottom in the direction of the water flow, without circular circles or horizontal wiping. Rinse the car wash after it dries, and markings will appear. 5.

After washing the car on a hot day, you must wash all parts properly with water to avoid leaving water traces, use a clean and soft towel to wipe the body, and do not wipe or press hard to avoid damaging the paint surface. 6.Do not use alkaline detergents, soapy water, cleaning detergents, dewaxing detergents, or organic matter (gasoline, kerosene, volatile oils, or strong solvents).

7.When cleaning the combination lamp, do not wipe the surface of the combination lamp with chemical solvents such as gasoline, alcohol, banana water, thinner, carbon tetrachloride, etc., otherwise it will cause the mask of the combination lamp to break. 8.

Vehicles driving along the coast and in heavily polluted areas are recommended to be cleaned once a day. 9.Do not use a bulldozer or gasoline to remove dirt from the car body, so as not to damage the plastic wheel trim on the surface of the car, if the trim is scratched by organic matter, please use water to clean and replace it in time to avoid accidents.

10.Do not rub the bumper with abrasive-containing cleaners. 11.

When cleaning bright plating accessories, use a charcoal cleaner and wax regularly. 12.When cleaning underneath the floor or chassis, it is important to pay attention to safety.

13.When using an automatic car wash station, pay attention to the selection of the correct brush, whether the cleaning water is filtered, and the machine-specific cleaning steps to ensure that the car wash process will not damage the paint surface. On dark-colored vehicles, scratches on the painted surface can reduce the durability and gloss of the painted surface.

Therefore, it is best to consult with the cleaning station staff before washing the car to find out which car wash steps are the safest for the paint surface of the vehicle.

When washing the car, it is best not to use alkaline substances such as laundry detergent and dish soap to wash the car. In addition, it is best not to choose to wash the car under the scorching sun, and to wash the vehicle in time after rain and snow. When scrubbing the vehicle, it is best to use a special car wash cloth and gently wipe it from top to bottom in the direction of the water flow.

Don't rub horizontally, and don't rub in circles. When washing a car, it is best to wait for the engine to cool down completely before washing the car, otherwise it is easy to cause the car engine to age. When the stool needs to be cleaned on the windshield, tires, rims, inner compartment and other parts, it is best to use professional cleaning agents and tools to clean and refurbish.