Is it always necessary to replace a damaged windshield?
Small scratches and cracks visible on the surface of the windshield are most often caused by impacts of stones flying out from under the wheels of speeding cars. These damages will gradually increase, which will prevent the driver from objectively assessing the situation on the road. The only correct solution then would be to replace the glass with a new one. The cost of this service can be avoided if you respond quickly enough and immediately, after detecting damage to the windshield, contact a specialized windshield repair service.
According to experts in the automotive industry, replacing damaged car glass is not always necessary. TO 
small scratches and cracks can be easily repaired using appropriate technologies and materials. According to the NordGlass expert, the service carried out by professionals allows you to restore the original strength of glass by as much as 97%. Given the efficiency and cost-effectiveness of this method, today it is worth figuring out when it is better to repair the windshield, and not replace it.
“In the place of a defect, contaminants gradually accumulate on the glass, which, under the influence of changing temperatures and precipitation, can cause a gradual deepening of the degree of damage. This is because the air in the aperture has a different refractive index than glass. Repairing a defect in a professional service allows you to remove the accumulated air, and then introduce a special resin into the defect, the refractive index of which is identical to the glass of a car windshield. Thus, in the first place, point damage is repaired, but sometimes, if the specialists are informed quickly enough, single cracks are also repaired. It is important that a small mark may remain at the injection site of the resin. Whether it will be visible on the glass surface and how much depends on the type of materials used and the accuracy of the master. For this reason, it is better to use the services of reputable companies that not only use proven drugs, but also provide guarantees for the service provided.” - lists the expert from NordGlass.
The consequence of postponing the repair of even small mechanical damage will be an increase in their size. You should not do this, because, as the NordGlass expert points out, not every type of windshield damage can be repaired later. “A windshield cannot be repaired if the cracks are directly in the driver's field of vision. In passenger cars, this is an area 22 cm wide, symmetrically located in relation to the steering column, where the upper and lower boundaries are determined by the wiper field. In trucks, this area is 22 cm squared, centered 70 cm above the surface of the unloaded driver's seat. The total amount of damage cannot exceed 24 mm, i.e. the diameter of the coin is 5 zł. It is equally important that the distance from the edge of the glass is no more than 10 cm. If there are more defects on the glass, they must be separated by a distance of at least 10 cm.
Windshield repair has many benefits. The main ones, of course, are the price - about 75% lower than when buying new glass - the ability to restore the original glass strength by almost 100% and a short service life. Drivers postponing repairs should also be aware of the legal penalties that come with driving a vehicle that is not fully roadworthy.
“Any damage to the windshield disqualifies the car from a diagnostic examination and is the basis for the police to confiscate a driver's license. I think it’s not worth the risk, ”says an expert from NordGlass.
When following the NordGlass expert's guidance, remember that a scratch or gouge doesn't always have to be associated with replacing the entire car glass. A professional damage repair will restore it to its original strength by as much as 97%. So instead of postponing a visit to the service, let's take care of the condition of the windshield in our car today.
