Author: Luche Senior Brother
Questions in this issue:
1. Which car is suitable for replacing the original wiper ?
2. If the original car is boneless wiper , is it enough to just change the glue strip?
3. If you only change the rubber strips, how should you choose ordinary rubber strips and coated silicone strips?
1. Which car is suitable for replacing the original wipers?
As long as the original factory is not a boneless wiper car, I recommend changing it to a boneless wiper after the original factory wiper is not clean. The reason is very simple. When I wipe the boneless wiper on the glass, the entire side is in a sealed state, so that I can ensure that all the scraped water is pushed away. But bone wipers are different from three-stage wipers. There is a skeleton gap on the side of their wipers. Once the scraped rainwater exceeds the height of the rubber strip, it is prone to leakage. Therefore, as long as the rain is a little heavier, bone and three-stage wipers will leak.
Secondly, the overall shape of the boneless wiper is more scientific than that of bone wiper and three-stage wiper, so its wind resistance coefficient is smaller, and it can provide faster wiper speed when the vehicle is driving at high speed to ensure the safety of high-speed driving on rainy days. I also confirmed this in previous simulation tests. The boneless wiper dry brush 50 times is about 1.5 seconds faster than the three-stage wiper, and about 2.5 seconds faster than the bone wiper.
The most important thing is that if we ordinary car owners change the rubber strips for bone wipers or three-stage wipers by themselves, it is actually a bit troublesome, because we have to first pull the rubber strips out a little between the two steel strips, then use pliers to pull out the two steel strips and the old rubber strips together, and finally put the new rubber strips and the two steel strips together and insert them back into the card slot of the wiper. This process requires removing the wiper from the wiper arm to operate, so it is better to replace the new boneless wiper directly.
My car was originally a three-stage wiper. It has been about a year and a half since I used it, and the main driver has already been wiped clean, so I plan to replace it with a boneless wiper. I will not repeat the process of changing the wiper. The only thing to note is to prepare a thicker fiber towel under the wiper arm interface to prevent the wiper arm from shattering the windshield.
This time I changed to the domestic old wiper wing. Because it has several patented silent designs, I was curious, so I planned to give it a try. Moreover, this old wiper accumulated a lot of wiper interface data, so it is basically used for special cars. The mold opening accuracy is high and the materials are better. It is tightly fitted when installed, and it will not feel loose after installing it for free shipping.
2. If the original car is a boneless wiper, is it enough to just change the glue strip?
In fact, I have always recommended using boneless wipers in previous programs, and then regularly replace the rubber strips. The same is true for several other cars, but there will be a problem in doing this, that is, as time goes by, the steel bars of boneless wipers will have metal fatigue. For this reason, I used a car that my friend bought for three years to do a long-term test.
My friend thinks the arc of the original wiper is the best, so his car has not changed the wiper for three years. When he first bought his car, I specially measured that the end pressure value of the main driver's boneless wiper was 249.9 grams. Now I used the same method to detect the pressure value at the same position and obtained is only 178.7 grams, which is quite a big difference.
The reason for this situation is actually easy to understand. The boneless wiper relies on the deformation of a curved steel bar in the middle to disperse the down pressure of the wiper arm on the rubber strip. Then, assuming that the original boneless wiper steel bar is really the most in line with the arc of the original glass. After being pressed down by the wiper arm, it can completely disperse the pressure to every point in contact between the rubber strip and the glass. This is the most perfect state.
But at this time the steel bar inside is also under pressure, so as time goes by, stress deformation will occur, and the arc of the original steel bar will become flatter and flatter, resulting in the pressure in the middle of the rubber bar and the pressure on both sides will become smaller and smaller.
The last middle glue strip will become curled when wiped, and the water cannot be scraped clean, and water spots will form on the glass. I believe many brothers have encountered this situation. It often appears first in the middle of the wiper. The pressure on both sides of the wiper will be too perpendicular to the surface of the glass, causing the wiper to sound and jump abnormally. In severe cases, water marks will even appear one by one, seriously affecting the driving sight.
plus wiper arm spring will also experience metal fatigue. As time goes by, the spring becomes looser and looser, and the pressure on the wiper arm will become smaller and smaller. If you change to a new boneless wiper with a larger curve and hard curve, the rubber strip in the middle of the wiper will not be able to touch the windshield. Of course, this situation will only occur on older cars. After all, the quality of the original wiper arm spring is generally better, and the speed of metal fatigue is much slower than that of the wiper steel strip.
So even if the original factory has a boneless wiper, it has been used for more than three years, and after changing the rubber strips, it will still not be cleaned in one or two months. Then it is very likely that the original steel strips are not good, so we have to consider changing the wiper itself. This is the case with my friend's car at present, it cannot be cleaned, so he asked me to help him choose a pair of wipers to replace.
Here I just share with you a little experience in purchasing boneless wipers. That is, you can use a small electronic scale to measure the pressure value of the wiper arm. Generally, new cars, especially German cars, the pressure value will be greater than 1 kilogram, so we choose boneless wipers with a slightly larger arc and harder curve, so that the pressure will be dispersed more evenly and the glue strips will be more durable.
. The pressure value of the wiper arms of an old car over ten years is often less than 1 kg or even less than 800 grams. In this case, you need to choose a boneless wiper with a smaller arc to ensure that the wiper arms can press all the wipers on the windshield.
Of course, if you really don’t want to worry, you can directly buy the old domestic wing wiper like me. It uses double steel bar austenitic steel in the boneless wiper, which can adapt to wiper arms of 600 to 1400 grams of different pressures. It covers a wide range of models and ages, so it is a very good replacement for original wiper wipers, and it has also added a special design to the rubber strip part, which can better assist the work of wiper steel strips.
3. If you only change the rubber strips, how should you choose ordinary rubber strips and coated silicone strips?
Many brothers have asked me this question, so I brought back a sample of a silicone wiper strip at the wiper factory last time. The real silicone wiper strip is actually gray. It actually does not have a long-term coating effect, but there are some coating components on the surface of this glue strip.
So when you first use it, it can make the car owner feel like glass coated . Most of the so-called silicone coated glue strips on the market are basically the same, and sellers will claim that the silicone coated glue strips are not afraid of ultraviolet rays, so they will not age and the service cycle will be longer.
Since the silicone wiper strip is so powerful, why do our original cars still use rubber strips? The reason is very simple. Ordinary silicone has too strict temperature requirements. When it is cold, the friction coefficient of will be too large, resulting in unclear glass scraping and severe friction noise. Therefore, the ordinary silicone strips and wipers I saw before were all ready to export to Malaysia tropical areas.
Of course, there are also very expensive silicone coated wipers that can be used in cold areas, but the reason why we only change the glue strips is to save money? If you just pursue the coating effect of glass, it is better to use glass coating agent directly, which is better than coating wipers and is cheaper.
So just looking at the material, natural rubber is definitely a safer choice, but the more important factor is the design of rubber strips. Now most wiper rubber strips are basically concentrated in the horizontal direction. The most common design wind is the three horizontal and one vertical. When it is wiped, the three horizontal lines will squeeze each other to ensure that the attack angle between the rubber strip and the glass is within the range that can clean the glass. However, as time goes by and the number of times of use, cracks will appear between each horizontal strip, causing the attack angle to become larger and larger, and the curling area will appear, and the glass will not be scraped clean.
So later, there were two horizontal and one vertical rubber strips, and the middle horizontal would be thicker, so as to minimize the attack foot caused by the aging and cracking of the rubber strips, thereby extending the service life of the rubber strips. However, this will cause the rubber strip to flip the angle when working, which will cause severe abnormal noise and noise of wipers when the weather is cold, affecting driving comfort.
For example, I have only bought the BMW of another friend for two years. During this period, the weather has cooled down and the wipers have abnormal noise. I recommend him to change the patented silent rubber strip for Hidden Wings, because this rubber strip has a vertical reinforcement rib design based on three horizontal and one vertical, which plays a supporting and cushioning role, which can ensure that the rubber strip can still maintain the correct attack angle with the glass after long-term use.
, and the arrangement density of these reinforcement ribs also takes into account the characteristics of high pressure in the middle and low on both sides. Therefore, a segmented pressure-bearing design is made, with dense middle and sparse ends, which better disperses the stress burden of the wiper steel bar and makes the rubber bar more durable.
Even if he buys his original BMW Valeo wipers online, it costs more than 250 yuan, but it is very cheap to change the rubber strips by himself. The patented silent rubber strips by Yinyi are only more than 10 yuan, so it is still very cost-effective to do it yourself. After changing the rubber strips, he said that it feels quieter than the new wipers and is clean and very good.
Summary:
If your car is not a boneless wiper in its original factory, then I suggest that it should be replaced with a boneless wiper, which will have a better driving experience on rainy days.
If your car is a boneless wiper, it is recommended to replace the wiper strip once a year and replace the wiper itself every three years.
If you want to try this patented silent wiper or wiper strip from Yinyi, you can leave a message at any store selling Yinyi wipers and tell the customer service that you are a fan of "Senior Brother Luche", and you will get an exclusive discount~
