Do you still use primer for car bumper painting?

It is recommended to spray primer, and the general car bumper painting is 3 layers of paint, primer + color paint + surface varnish. In order to save, you can spray one less layer, but safety comes first.

Car paints are generally baked paints. In the depot, after the frame and body are welded (and sometimes repaired by hand), the next process is painting. In general, the first is the primer.

Dip the bare car shell into a syrup-like paint tank and remove the drying primer; Then send it to the dust-free workshop and spray the paint with the electrostatic spraying process. It is then dried at a temperature of around 200 degrees. If you are elegant, you will apply another layer of varnish.

In this way, the painting process is complete.

Ordinary paint, metallic paint, pearlescent paint. No matter what color paint is, its pigment will fade in the sun. In fact, not just paint, anything with color can fade in the sun.

Painting a car can be roughly divided into the following processes: putty scraping, grinding, painting, grinding surface particles, waxing and polishing, etc.

Hello, car bumper painting does not need primer, but it needs to be painted with a surface bond, which will increase better adhesion.

This does not need to be sprayed primer, only metal parts need to be sprayed with this primer is also to protect the metal parts and prevent rust, so plastic bumpers are not used.

If you want to paint from scratch, you usually need to spray primer, then pot paint, and varnish.

The partial touch-up paint of the vehicle bumper does not need to be re-sprayed, as long as the color is adjusted, it can be sprayed directly.

Do you still use primer when spraying the bumper of a car? I think that when the bumper of a sedan is painted, it should not be sprayed with primer. Just spray paint is fine.

It is necessary to spray primer and then paint.

Yes, after the plastic bumper is repaired, if the original primer has been completely sanded off, it cannot be sprayed directly with ordinary car paint, and ordinary paint, whether it is low-temperature baking paint or air-dried paint, is ordinary nitro paint.

When the car bumper is painted, it is generally necessary to spray a layer of primer, after all, after spraying the primer, the paint surface is relatively stronger.

For car bumper painting, of course, the primer should be sprayed first, so that the paint sprayed is smoother and more even, and the effect is better.

First see if the paint scraping off is serious, and you also need to confirm whether it is really scraped off. Sometimes the paint is not scraped off, but something else is stuck to it, so just use some cleaning agent or coarse wax to deal with it. If there is a scratch, but the scratch is not very serious, and there is no primer, you can also throw away the light or use coarse wax to treat it simply.

It is best to spray the bumper in full spray. Bumper painting is divided into full spray and half spray, the most critical difference is the color difference, half spray bumper, it is very difficult to maintain the original paint color, and the implementation of full spray bumper, although there is a certain gap with the original paint, but at least it is a whole spraying, the color will be unified.

The front and rear bumpers of modern sedans are made of plastic, which people call plastic bumpers. Generally, the plastic bumper of a car is composed of three parts: the outer plate, the cushioning material and the cross beam. Among them, the outer plate and cushioning material are made of plastic, and the beam is stamped with cold-rolled sheet to form a U-shaped groove; The outer plate and cushioning material are attached to the beam.

The plastic bumper is composed of three parts: the outer panel, the cushioning material and the beam. The car bumper is a safety device that absorbs and mitigates external impact and protects the front and rear of the body.

Bumpers are superficially designed to avoid the impact of damage to the vehicle's external safety system, have the ability to reduce driver and occupant injuries in high-speed impacts, and are now increasingly being designed for pedestrian protection. The bumper is divided into a front bumper and a rear bumper, and its function is to ease the impact force, absorb the energy of the collision, reduce the damage of the car, and ensure the safety of the occupants when the car is accidentally hit at a slight low speed in the front and rear directions.

However, the role of the bumper is limited, and when it is hit by a high-speed impact, it can only absorb a small part of the energy, and it cannot be relied on to insure. It can only act as a buffer in the event of a collision and protect the front and rear bodies. The materials of the front and rear bumpers are mainly metal materials, plastics, fiberglass, etc., and some bumpers are equipped with hydraulic cylinders inside, which can absorb more impact energy.

It is recommended to spray primer, and the general car bumper painting is 3 layers of paint, primer + color paint + surface varnish. In order to save, you can spray one less layer, but safety comes first.

Car bumpers can be painted. However, before painting, you need to polish the bumper and then spray the plastic primer, at which point you can spray paint. Here are some introductions to car bumpers:

The front and rear ends of the car are equipped with bumpers, which not only have decorative functions, but more importantly, they are safety devices that absorb and mitigate external impact forces, protect the body and protect the body and occupant safety functions.

The structural composition of the bumper is:

1. The outer plate and buffer material are made of plastic, and the beam is stamped into a U-shaped groove with a cold-rolled sheet with a thickness of about millimeters; The outer plate and cushioning material are attached to the beam, which is screwed to the frame rail, which can be removed at any time.

2. The plastic used in this plastic bumper is generally made of polyester and polypropylene, which are made by injection molding.

Do you need to spray primer when painting car bumpers? When the car bumper is painted, the primer must be sprayed, otherwise it will rust.

Do you need to spray primer when painting car bumpers? Strict. The requirement should be to spray the primer, and then spray the outer paint after the primer is fine.

No, the car bumper is painted, as long as the paint corresponding to the bumper is sprayed.

If you need to spray the primer, it will be easy to fall off and the adhesion will not be strong.

Spray primer where rust is easy to get in. Sprayed primer is not easy to rust. If you don't embroider the lacquer, it won't be easy to fall off.

Normally, when the front bumper of the car is scratched to reveal black, it means that the scratch is more serious and has damaged the base paint, and this situation can only be repainted. For example, if the scope of paint scratching is small, there is still no need to spray paint to solve the problem, but only need to carry out the corresponding paint repair operation to solve the problem. Let's take a look at how to do it in order to spend the least amount of money to solve the problem of paint scratching.

Method 1: If the degree of scratching is not too serious, and the scratching range is small, there is no need to go to the auto repair shop to repaint, after all, repainting will damage the original paint of the vehicle, which has a great impact on the depreciation of the car. In this case, the owner can buy some small stickers to paste on, after all, the front bumper of the car is mostly made of plastic, even if there is a phenomenon of scratching off the paint, it will not cause rust, etc., so you only need to use a small sticker to cover up the paint scratches.

Method 2: The car bumper is scratched to reveal the black primer, and the scratching will affect the appearance of the car, at this time, a relatively simple method can be taken to solve it. For example, first buy a touch-up paint pen online, then clean the scratched part of the car paint, and after there are no remaining stains and water traces on the surface of the scratching position, finally use the touch-up pen to gently apply the scratched part of the paint, so that the black primer exposed on the scratched part can be covered.

In fact, many of the scratching problems of the body are basically dealt with a touch-up pen, after all, it is economical, and a touch-up paint pen is only a few dollars in cost.

Method 3: When the car bumper is scratched to reveal the black primer, and the car paint scratches a large area and has a certain depth, the owner needs to do a simple paint repair job. For example, you can go online to buy a set of touch-up paint sets, which contain clay, sandpaper, self-spraying paint, etc., and follow the tutorial to operate the touch-up paint **, which can also deal with the exposed parts of the scratch.

Usually a set of paint kits cost about 50 yuan, which is definitely a more economical operation compared with going to the 4S shop to spray paint, you must know that the cost of painting on a side of the 4S shop starts at 150 yuan!

Method 4: When the car bumper is scratched to reveal the black primer, and the scratch is very serious, the vehicle must go to the 4S shop for painting, in fact, the owner can also enjoy the benefits of free painting. For example, when buying insurance for a car, many insurance companies will basically give away 1-2 sides of spray paint, and this paint service is completely free, and more importantly, even if the car owner uses the paint service, it will not be counted into the insurance claim.

Therefore, when there is a scratch on the vehicle and needs to be painted, the owner can take advantage of this opportunity and enjoy the free painting service of the insurance company.

To sum up, when the car's paint appears scratched to reveal black, if you learn the above 4 commonly used treatment methods, you will basically no longer be worried about the high cost of painting, if you feel that these treatment methods are useful, you might as well try it!

This needs to look at the damage to the bumper paint, if the paint at one end is damaged, it is generally necessary to repair half of the bumper; If there is damage at both ends, this requires the entire bumper to be fully painted.

The most convenient way to repair the bumper is to spray the entire bumper. Since a little rubbing needs to be filled in a very large area to make the whole workpiece look natural. You can't just fix a little bit to be perfect. The point is that the interface can't be done. The price is the same, basically to repair a bumper.

The role of the bumper.

The front bumper distributes the force to the energy absorbing boxes on both sides, which then transmits it to the left and right front side members, and then to the other structures of the body. The rear side is subjected to the impact force, and the rear bumper conducts the impact force to the energy-absorbing boxes on both sides to the left and right rear side members, and then to other structures of the body.

Low-strength impact bumpers can cope with it, while high-strength impact bumpers play the role of force transmission dispersion and buffering, and finally transfer to other structures of the body, and then rely on the strength of the body structure to resist.

It must be sprayed with primer, although the bumper is a plastic part, but the plastic part he also has to have confidence, the role of the bottom gas is not in its other or rust prevention and other rust prevention, these words belong to the primer or an important property of isolation, but there is a very important job, everyone ignores the confidence. There is a certain grip between the topcoat and the topcoat, if you don't spray the primer, spray the topcoat directly, the paint will be sprayed up, the topcoat is very related, and it will soon enter the glass and fall off piece by piece.

The original bumper is already painted at the factory and does not need to be painted again. At present, there are two types of bumpers on the market: original and original cars. The original bumper refers to the direct supply of the original factory, and the original car bumper is basically manufactured by the auxiliary factory, and even some are produced by other small workshops.

Advantages of the original bumper:

1. In terms of front toughness, it is very difficult to deform even under high-intensity pressure. Secondly, because it is directly supplied by the original factory, it is naturally better guaranteed in terms of quality. Although the price is more expensive, the bumper is a kind of safety component after all, and the money is still worth spending;

2. The new bumper is not painted, most likely because it is not the original bumper. If you take the source of goods in the auxiliary factory or some small workshops, it is generally sprayed in the later stage (only containing primer), which is naturally not as stable as the original assembly line;

3. After all, the original paint is integrated in the paint baking room above 200 degrees in the factory, and the gloss and durability are basically better than the ordinary late painting. Of course, after replacing the bumper, be sure to check the logo or original label on it, and believe that you don't necessarily want to let the profiteers be deceived in the dark.

Photo by Lin Hong) @2019