甩牌之謎

card throwing puzzle

"The Mystery of Throwing Cards" - What's the solution? Do you want to get rid of it? Do you want to get rid of it?

The word "dumping" may sound funny, but for many car owners, it is a real trouble. Why is your beloved car turned into "driving without a license"? Today we will have an in-depth discussion with you, from materials to design, dismantling the reasons behind it one by one, and how to completely solve the problem of discarding cards!

"What is PP+EPDM?" 》——The key reasons for the discarding problem

First of all, you need to understand the connection between the license plate and the car body. On the surface, it looks like double-sided tape, but the real hidden role is the material PP+EPDM . What is he? Let’s break it down piece by piece:

PP+EPDM basic ingredients

  1. PP (polypropylene) : 30 parts
  2. Oil-filled EPDM (naphthenic oil) : 70 parts
  3. Dipropylbenzene peroxide (DCP) : appropriate amount
  4. Talcum powder and other additives : appropriate amount

Features of PP+EPDM

  • High elasticity : It can absorb vibration and protect car parts.
  • Weather resistance : Not afraid of wind and sun, but afraid of oil at high temperatures.
  • Fatigue resistance : It will not be easily deformed or aged after long-term use.
  • High tear strength : not easy to rot, but the slippery surface makes it difficult for the adhesive tape to stick firmly.

The root of the problem - oil

The naphthenic oil in oil-filled EPDM is the heart and soul of PP+EPDM, but it is also the culprit of brand rejection. When the material is exposed to heat (like the summer in Hong Kong!), it will exude grease and make the surface slippery, making it difficult to apply real glue. In addition, it contains plasticizers (chemicals that maintain flexibility), which further affects the adhesive strength of the adhesive tape.

"Explanation on the frequent occurrence of discarding cards?" 》

Japanese cars VS European cars

  1. Japanese car

    • Simple structure : Japanese cars are designed to use screws to fix the license plate, so there are relatively few opportunities to throw away the license plate.
    • Exception : If you insist on using adhesive tape instead of screws, something will happen, because Japanese car design does not consider using double-sided tape to install license plates.

  2. european car

    • Due to market demand for European cars, most of the frame designs tend to be aesthetically pleasing, which makes it easy for some car models to stick license plates on them with double-sided tape.
    • The agent has tried many methods, including using screws, but none of them may work well.

"Case Study of Major Brands Dumping Brands" - Finding the Truth from Historical Lessons

Audi

  • Problem: Tail plate raised structure
    There are two wire caps on the tail plate of the Audi, which protrude 4-5 mm. The standard adhesive tape cannot be firmly attached at all, and will naturally fall off after time.
  • Solution <br>We taught the agent to use lifting tape, and the problem has been solved so far. However, some of the top cards still have similar designs and require special efforts to stabilize the formation.

Mazda

  • Question: The European version of the head plate frame <br>Some Mazda models supplied to Hong Kong are made of PP+EPDM, and it is common for the glue to not stick firmly.
  • Solution <br>The Hong Kong agent was very eye-catching and directly added two pull caps and screwed them together to make them stable, but some car owners felt that it affected the appearance of the front of the car.

Benz

  • Problem: Pointed front design
    Cars such as the A-Class and E-Class often lose their license plates because the front design is too sharp and the stickers cannot support the weight.
  • Solution
    Benz agents later switched to an outer frame design, incorporating the cards into the frame, but the appearance became less streamlined.

Porsche

  • Question: PP+EPDM aluminum sheet problem
    In order to stabilize the license plate, the Porsche model agent added an aluminum alloy piece and fixed it with screws. However, this method caused false alarms in the sensors of some models, such as the Macan, and eventually required reprocessing.

Land Rover

  • Problem: Excessive surface treatment <br>Some Land Rover agents will use sandpaper to polish the surface of the license plate and then apply glue. This method is violent but effective. However, the car owner will be heartbroken when he sees his new car being scratched!

VW

  • Question: Apply license plate to painted surface
    VW's former dealer applied a large amount of stickers directly to the paint surface, which left stains on the paint that were difficult to clean up later.
  • Solution <br>We recommend using traceless adhesive tape to effectively avoid this problem.

"How to solve the problem of discarding cards?" 》

  1. Surface treatment

    • Clean the PP+EPDM surface with solvent or degreaser to remove grease and plasticizer.

  2. High performance double sided tape

    • Choose high-strength adhesive tape specially designed for PP+EPDM materials, and the adhesion will be greatly improved.

  3. Press hard

    • When installing, press firmly for 10 seconds to completely squeeze out the air and ensure that the adhesive tape fully contacts the surface.

  4. temperature management

    • Avoid installation in humid conditions and choose a drier environment for construction, the effect will be more stable.

Summary: The knowledge behind discarding cards

The discarding of cards is not a natural disaster, but a man-made disaster! Many times, if you are willing to study the root cause of the problem and improve the way you handle materials, you can avoid a lot of trouble. Some agents can continue to make progress, which is worthy of encouragement; but some are still stuck in the stage of "weird designs and weird materials" after discarding the cards. The key to solving the problem in the end is whether you are willing to put in the effort to make some small improvements.

Whether you drive an Audi, Mazda, Benz, T car or Porsche, as long as it is properly installed, the problem of license plates can be easily solved! 🎉

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