Will There Be Marks After Car Glass Repair?
2 Answers
There will be marks after car glass repair. The principle of glass repair is to extract the air from the damaged area and inject a transparent resin into the cracks. The refractive index of the glass repair resin is almost identical to that of the original glass, making it difficult for the naked eye to detect the original damage. However, in reality, traces will remain. Car glass repair can prevent holes or cracks from expanding, ensuring driving safety. It reduces waste glass, aligning with environmental trends. Glass repair does not require disassembly, avoiding potential rust or leaks caused by replacing the glass. Moreover, after repair, the hardness of the glass remains unaffected, and clarity can reach over 95%. Additionally, glass repair is performed on-site, is quick and convenient, saving time and money for car owners, and is cheaper than replacing the entire glass. If both layers of the car glass are damaged, resulting in three or more long cracks, or if the glass has been damaged for too long with obvious dirt in the cracks that cannot be removed, the glass damage cannot be repaired.
I've had my car windshield repaired several times, and there are indeed some minor marks left after crack repairs. It mainly depends on the size of the damage. Small cracks can be filled with resin, and after curing, the marks are almost invisible. However, larger cracks might leave a fine line or a slight blur, with some difference in light reflection. In my case with a small crack repair, it's unnoticeable unless you look closely, but you can catch a faint shadow from certain angles under bright light. This happens because resin and glass have different material properties—both are transparent but refract light differently. I recommend choosing a professional shop and acting early. Repairing when the crack first appears yields better results, restoring over 90% of safety. If left too long, the crack may expand, making repair marks more noticeable, and you might even need to replace the glass. For maintenance, avoid frequent car washes or hitting the repaired area with hard objects to protect the resin layer's durability.
