Installation of windbreakers (deflectors) is not just a way to protect the cabin from rain and dirt, but also an opportunity to improve the aerodynamics of the car, reducing the noise level when the window is open. Many car owners face the problem when purchased accessories fall off after the first wash or winter operation. Often this is due to banal non-compliance with the technology of gluing or the choice of poor-quality adhesive composition. In this article, we will break down all the nuances of the process so that your deflectors last for years.
Before you start, you need to understand that the perfect cleanliness of the surface is 90% of the success. Even microscopic dust particles left on the window frame can become the center of adhesive detachment. Modern. lanternThe sulphur, which are used on most quality deflectors, require a chemically pure base for polymerization. Ignoring this stage turns the installation into a lottery, where winning is unlikely.
It is also important to consider the temperature. The adhesive layer of most manufacturers requires an ambient temperature of not less than +10 ° C for primary contractibility. Attempt to glue the deflector in the cold or in an unheated garage in winter is doomed to failure - the tape simply will not "work". Therefore, if you plan to install in the cold season, be sure to drive the car into a warm box a few hours before the start of work.
Choice of deflectors: insert or sticker?
In the modern market of auto accessories, there are two main types of windbreakers: inserted into the doorway and glued outside. Fold-in models They are kept due to the struts and elasticity of the material, but often create gaps where dust is stuffed, and can also make it difficult to open doors. Adhesive options look more aesthetically pleasing, repeating the body bending, and provide better sealability if installed correctly.
When choosing adhesive deflectors, pay attention to the thickness of the adhesive tape. Cheap analogues often have a thin layer of glue that dries quickly. Quality products from brands like Heko or Vipon Use double-sided tape of increased adhesion. It is also worth checking the flexibility of the plastic: with a slight bending, it should not whiten or crack, returning to its original shape.
Do not chase after universal models "for all brands of cars". Although they are cheaper, the gap between the deflector and the bodywork can be too large, which will require the use of a large amount of additional glue that spoils the appearance. Specialized models, sharpened for a particular model of the car (for example, Toyota Camry or Hyundai Solaris), sit perfectly in the contour.
Necessary tools and surface preparation
For a high-quality installation, you will need a minimum set of tools that every motorist will have. The main thing here is not so much a tool as consumables for degreasing. The use of acetone or aggressive solvents can damage the paint coating (LCP) or the deflector plastic itself, so the choice of the remedy is critical.
List of required equipment:
- 🧼 Degreasing agent (antisilicone or isopropyl alcohol) - you can not use gasoline or acetone.
- 🧻 Microfibre or lilaless wipes – common rags can leave villi that worsen the grip.
- 🌡️ Building hair dryer or household hair dryer - is necessary for warming up glue and plastic in the cold season.
- ✂️ A stationery knife or blade - for cutting the excess length of glue tape.
The process of surface preparation begins with a thorough car wash. After drying the water, the place of gluing (door frame) should be wiped with a degreasing agent. Movements should be progressive, from the center to the edges, so as not to smear the fat on the surface. After processing don't touch to the fat-free area with the fingers, since the skin fat will instantly reduce adhesion.
☑️ Preparation for gluing
Step by step instructions: how to glue windbreakers
The most important step is the direct installation. Many people make the mistake of immediately removing the protective film from the entire deflector. The correct technology involves partial removal of protection or the use of the "slider" method (leaving a strip in the middle) to be able to adjust the position.
Algorithm of action:
- Do a preliminary fitting of the deflector on dry, without removing the protective film. Make sure it doesn’t block the view and prevent the door from closing.
- Carefully remove the protective film from the glue layer. If the tape is solid, you can leave a narrow strip in the middle to bend the edges.
- Apply the deflector to the installation site, press tightly along the entire length. Start at the front (closer to the mirror) and move to the back.
- Use force: swipe your finger or rag along the entire length of the tape, expelling air.
If you accidentally glued the deflector curved, do not try to tear it off right away. Warm up the joint with a hair dryer, the glue will become softer, and you can gently move the part without damaging the LCP.
After gluing, a uniform pressure must be ensured throughout the length. To do this, you can use a soft roller or just press your hand tightly in a glove. Pay special attention to the edges - this is where the detachment most often begins. If it is cool outside, warm up the installed element with a hairdryer (not overheating the plastic to deformation) to activate the adhesive layer.
Common Mistakes and How to Avoid Them
Statistics show that 80% of cases of windbreaking are associated with human factor. The most common mistake is not enough degreasing. Owners often simply wipe the frame "just in case", while mechanical removal of oxides and dirt is required, followed by chemical treatment.
Another common problem is ignoring the time of glue drying. Manufacturers indicate that complete polymerization takes between 24 and 72 hours. During this period forbidden wash the car under pressure (kercher) or drive at high speeds on a highway where airflow puts a significant strain on the element.
⚠️ Attention: Never use White Spirit or solvent 646 for degreasing. They can leave a greasy film or, conversely, overdry the plastic, making it brittle. Use only specialized car degreases or pure alcohol.
Also a mistake is an attempt to save on the quality of the accessory itself. Cheap Chinese deflectors often have curved geometry. When you try to “forcefully” glue them along the contour, there is tension in the plastic. Over time, it tends to return to its original state and peels off along with the glue.
Comparison of fixation methods
To better understand the differences between types of fasteners and their impact on durability, consider a comparative table. This will help you decide on your choice if you have not yet bought a deflector.
| Parameter | Adhesive deflectors | Fold deflectors | Combined |
|---|---|---|---|
| Aesthetics | High (repeat contour) | Medium (gap visible) | Tall. |
| Risk of unfettering | Eat (depending on glue) | Absent. | Minimum |
| Influence on the door | Don't bother. | May require adjustment | Don't bother. |
| Complexity of installation | Medium (preparation required) | Low (inserted and forgotten) | Tall. |
As can be seen from the table, insert models are easier to install, but lose in appearance. The adhesives require preparation, but give the best result. Combined models (with fastening and insertion, and glue) are less common, but are the middle ground, although they are more expensive.
The main secret of durability is not so much the brand of the deflector, as careful surface preparation and compliance with the temperature regime during installation.
Caring for deflectors in winter
Winter is the most severe test for any external elements of the car. Temperature changes, reagents on the roads and mechanical effects of snow blowers brushes can quickly make windbreakers unusable. Plastic, especially low-quality, in the cold becomes fragile.
When cleaning your car from snow and ice, be very careful. A brush strike on the edge of the deflector can split it or break the tightness of the adhesive seam. If the deflector is covered with an ice crust, do not try to chip it with a knife or screwdriver - there is a high risk of scratching the body or the accessory itself. It is better to use a glass defroster or warm water.
⚠️ Attention: On automatic washings with brushes, the risk of damaging the deflector is very high. In winter, it is recommended to choose high pressure washers without contact cleaning or wash the car manually.
To extend the service life, it is recommended to treat the surface of the deflectors with polyreole for plastic every 1-2 months. This will restore the micropores, remove small scratches and create a protective layer that repels dirt and water. This is especially true for tinted deflectors, which can fade in the sun.
What to do if the deflector is still unstuck?
If the edge is unstuck, you can try reactivating the old glue. Clean the surface, warm up with a hair dryer and press hard. If the glue has lost its properties, use a special car sealant for glass or double-sided 3M VHB tape, having previously cleaned the remnants of the old glue.
Questions and Answers (FAQ)
How long after the car washing can I wash the car?
It is recommended to refrain from washing the car, especially under high pressure, for a minimum of 24 hours, and preferably 48-72 hours. This time is necessary for the complete polymerization of the adhesive layer and the set of maximum strength.
Can I use deflectors in winter in the cold?
It's highly discouraged. The glue at negative temperatures is not activated properly. If the situation is hopeless, the car should stand in a warm garage (+15°C and above) at least a day before and after installation.
What is better to degrease the surface before gluing?
The best choice is isopropyl alcohol or a specialized car degreasing (antisilicone). Gasoline, kerosene and acetone can not be used, as they can damage the LCP or leave a fatty plaque.
Why do the edges of the deflectors peel off?
Most often this is due to poor surface preparation (residue of fat / wax), insufficient heating during installation or mechanical impact (pressure wash, tree branches) in the first days after installation, when the glue has not yet risen.