How to identify solar film

I can tell the authenticity of the car film.

Several simple methods to identify automobile film

Now we F2 are all new cars, and the students take good care of their cars. They want to film the new car and send some knowledge about the car film to communicate ~

1. Touch by hand: the color of inferior film is added to the installation adhesive layer, so the adhesive layer and film are thick and have poor elasticity.

2. Wipe with alcohol and gasoline: Because the inferior film is a rubber dyed film, you can see the decoloration phenomenon by removing the protective layer of the film and wiping the rubber layer.

3. Smell with your nose: The residual solvent benzene in inferior film has high content and peculiar smell, which will seriously endanger the health of car owners.

4. Look at the quality guarantee: check whether there is a manufacturer's quality guarantee. The manufacturer's warranty card usually includes warranty items, years, payment methods, as well as the name, address and telephone number of the manufacturer that can be truly found; Especially when checking bar codes, regular manufacturers must have bar codes on their product packages. (mine has)

5. Scratch-proof layer: When the broken water or cleaning solution of the glass is squeezed in, it must be lined with a "protective film", otherwise the glass will leave tiny scratches that are not easy to see with naked eyes. If there is no "protective film", there will be no inferior film with scratch-proof layer. (mine has)

6. Refer to the technical parameters of the manufacturer: Visible light transmittance, visible light reflectance, heat dissipation rate and ultraviolet isolation rate are the professional terms commonly used by the manufacturer for the performance of the reaction film, and the first three commonly used meanings are transparency, reflectivity and heat insulation. The film has high light transmittance, low light reflectivity, good heat insulation and anti-ultraviolet rate of 98%, which is a fine product in the film. (mine has)

I also saw some posts saying that the automobile glass will crack after being pasted. I collected relevant knowledge to answer:

If there are no human factors, this phenomenon can definitely be related to film pasting. At present, the most common film pasting method in most automobile beauty shops is the wet heat setting process (mine is). This process is easy to produce excessive thermal stress on local glass, which may cause the glass to break. What is more, the glass will break on the spot. Experts remind that the safest and most professional laminating process should be dry heat setting process.

There are also many new films that smell in the car, probably because the car film is inferior. Benzene solvents, such as xylene, which remain in inferior automobile films are constantly volatilized, which will keep the automobile air in a state of pollution. How to eliminate pollution? First, we should pay attention to the ventilation of the window. It is best to go to a professional film shop to tear it off as soon as possible. In order to protect your car from further damage, you should understand that in the process of uncovering the film, don't use carbon steel blades and iron trowels to scrape the glass, especially the rear windshield, because the lines we see on the rear windshield are used for heating, defrosting and defogging, and the control switch is on the dashboard.

With the rapid increase of car owners, the car fittings market is becoming more and more popular ~ shops selling fake car films on the market are also eager to move, so car owners must keep their eyes open when choosing, so as not to be deceived. Now I will reprint some information about the car film for you:

Generally speaking, the following kinds of car films are favored in the market:

1, Gu Wei: Needless to say, it is an expensive membrane recognized in the market at present, and its heat insulation effect and ultraviolet resistance are really good. Aside from the price factor, its film texture is soft and scratch resistance is not very good. As we all know, the curvature of the side window of the new Accord is large, which is easy to cause serious scratches on the film.

Advantages: good heat insulation effect, good anti-ultraviolet effect and few fakes.

Disadvantages: Soft texture, poor scratch resistance and high price.

Price: the front gear and the car body should be able to pull the price to 2500-4500 yuan, and it will be worthless if it exceeds.

2. Johnson & Johnson: The price/performance ratio is good, but now fakes are rampant in the market and it is difficult to distinguish. Johnson & Johnson's new security label was copied. However, Johnson & Johnson has a hard texture and good scratch resistance.

Advantages: good cost performance and good scratch resistance.

Disadvantages: There are too many fakes to distinguish.

Price: the front gear plus the body should be around 2000 yuan.

3. Ray-Ban: Many users, good quality, but few real goods. Advantages: good transparency and various colors.

Disadvantages: There are many fakes on the market.

Price: The front gear plus body should be around 1600 yuan.

4. Sony: Although its popularity is not very high, its cost performance is good and its transparency is good. The most important thing is that there are not many fake and shoddy products.

Advantages: good cost performance, good transparency and few fakes.

Disadvantages: short shelf life, only six years.

Price: front gear plus body 1200 yuan.

5, 3M: The same fake film is everywhere, with less color, but the real film is also a classic, and the effect of filtering ultraviolet rays is also good.

Advantages: Classic color.

Disadvantages: too many fakes, less colors and poor scratch resistance.

Price: front gear plus body is about 2000-3000 yuan.

6. Yuma: This brand belongs to the mid-range. Because it entered the market late, its popularity is not very high, but its effect is good and its scratch resistance is also very good. At present, manufacturers have controlled the supply of goods and delivered them to authorized stores. Basically, there are few counterfeit products.

Advantages: good cost performance, good scratch resistance, verified by authorized stores and factories, and few fakes.

Disadvantages: short shelf life, only six years.

Price: front gear plus body 1200 yuan.

7, Dragon Film: This brand is rarely mentioned, but the quality is really good, but because it has just entered the market and the price is high, the sales volume is not very good, and there are very few agents who make this brand.

Advantages: Good user response quality.

Disadvantages: there are few dealers and it is not easy to find.

Price: 2500-3000 yuan

I use 3M, the product name of the front bumper is 3535 (natural scenery), and the side bumper is "Magic Master" ~ I posted it in an authorized store ~ The warranty period is 5 years after I received the "Quality Guarantee of Automobile Thermal Insulation Film" from 3M China Co., Ltd.

1: Looking for anti-counterfeiting marks

Anti-counterfeiting signs are printed on the back of the regular brand anti-riot sunbathing film, so you can ask the merchants or observe for yourself; In addition, if possible, you can ask the store for a scrap, uncover the back film, expose the adhesive layer, and then rub it on the ground. If there are fading and scratches, it proves to be a fake film or a poor quality solar film.

2. Make an infrared demonstration

Every regular store has an infrared demonstration box, mainly to test the heat insulation of explosion-proof membrane. Consumers can ask merchants to demonstrate and compare the thermal insulation effect between different explosion-proof membranes. High-quality film can obviously block thermal radiation, which can be judged by the feel outside the box.

3. Look, smell and ask questions

Handfeel: high-quality film feels thick and smooth, while inferior film is soft and thin, lacking sufficient toughness and prone to wrinkling.

Smell: Pressure sensitive adhesive is usually used for inferior films. This kind of adhesive contains a lot of benzaldehyde molecules, which will volatilize in the sun to produce odor, while the special adhesive for automobile film installation has almost no taste.

Look: the high-quality explosion-proof film has high definition, good color depth and perspective performance, and the inferior film has uneven color.

Wipe: You can wipe with chemical reagents such as alcohol, gasoline and asphalt cleaner. Because the inferior film is only dyed by the adhesive layer, or only coated with ultraviolet shielding agent, the fading phenomenon can be seen by wiping the adhesive layer after removing the protective layer of the film.

Note: When the high-quality film lifts the window normally, there will be no scratches or moire on the surface of the film, while the inferior car film has obvious defects in this respect.

4. On-site observation after completion

After installation, enter the car for physical inspection. After sticking the film all over the car, sit in the car and observe whether the color is even and there is too much gravel. A little gravel that is not in the key position is acceptable. Pay attention to whether it will affect the line of sight when looking out. The real anti-exposure film has good one-way light transmittance and will not hinder the line of sight.

There is also a regular brand film construction shop with standard construction price and authorization certificate. You can call the brand's China headquarters to inquire. (

What kind of movie is a good movie? From what aspects should consumers distinguish the authenticity of the film when purchasing? The reporter interviewed relevant experts, who reminded consumers that in the process of choosing the film, we should first choose a shop with high brand awareness and brand authorization to sell and install the certificate, so as to ensure the quality and after-sales service.

At the same time, in the process of selecting films, we should adopt the way of "looking, smelling, asking and cutting" in Chinese medicine to understand the products in detail.

◆ At first glance, explosion-proof membranes are usually light green, sky blue, gray, brown, natural color and other colors that are more comfortable for eyes. Moreover, the natural rubber film is plated with advanced metals such as nickel, silver and titanium by metal sputtering process, and no fading or fading will occur in any use.

From the appearance, the real explosion-proof membrane is even and soft in color, and there is no uneven color difference of waves, so the scenery naturally does not change color from the inside of the car. Ordinary color film directly melts the color into the film, and after tearing off the upper plastic paper, the color of the scraping surface will fall off.

In addition, the common color film will fade when it is gently wiped on the ground.

◆ Two tastes are average. The residual solvent benzene content in the adhesive layer of inferior film is high, which will have odor, while the good film is professionally treated before leaving the factory, with little odor. Experts warn that long-term smell of this smell will seriously affect the health of the owner.

◆ The so-called explosion-proof membrane must have the functions of heat insulation, explosion protection and ultraviolet protection. Therefore, consumers can consult the sales staff in detail when choosing, so as to judge whether the quality is true or false.

According to the general standard, the thermal insulation rate of explosion-proof membrane should reach about 90%, the ultraviolet blocking rate is generally not less than 98%, and the high-grade one is not less than 99%. However, the transparency, high-quality film, its transmittance can reach 90%, and regardless of color depth, the clarity is very high, consumers can see through the explosion-proof film when choosing, and the effect of inferior products is very vague.

In terms of explosion-proof performance, the high-quality explosion-proof film adopts special polyester film, which has strong toughness. Under normal use, it can protect the surface from being scratched, and the broken glass can be stuck by the film without splashing and hurting people. In terms of shelf life, the shelf life of films produced by regular manufacturers is relatively long, generally 5 years.

◆ Four cuts feel normal, the thickness of the safety explosion-proof membrane is not less than 2.5mm, and it feels very thick and smooth. In addition, because its surface is hardened, it generally does not scratch the surface. However, ordinary color film is thin and brittle because of its insufficient thickness, which will leave traces on the film in the process of shaking the glass.