When rain, dust, water spots, road grime or headlight glare from oncoming cars coat the windshields, it can be harder to drive at night. Even if the glass is fairly clean, there may be microscopic dirt that reflects light and makes the path ahead not as clear. One of the reasons why some vehicle owners think car glass coating is a part of their vehicle glass care routine. However, does a coating really enhance night driving visibility?
The impact of the Windshield Condition on the Night Visibility
A clean windshield is essential to good night vision. Oily residue and mineral deposits, dust particles can cause an uneven texture, which affects the interaction of light. Even if the glass is clean, headlights from other vehicles may fall on it as it passes through or reflect on the contaminated glass, creating distracting glares or halos.
Rain might make the problem more prominent. If there is no treatment on the glass, the water droplets will spread on the glass and cause an inconsistent visual field. This can make driving harder, especially during rainy weather, when the oncoming headlights and street lights can also make it more uncomfortable.
The working mechanism of Car Glass Coating
The purpose of a car glass coating is to form a protective coating on the glass. A lot of the glass coatings have water repelling qualities that help rain water bead up and roll away from the surface quicker.
What the benefit is not is the fact that the coating renders the windshield transparent or brighter. Rather, it can help to change the way water and contaminants move on the surface, which could lead to a cleaner, clearer field of view under some driving scenarios.
Water can flow over treated glass more easily at higher speeds, but this varies depending on the coating, how well it’s applied, weather conditions, and speed of the vehicle.
Will it minimize night time glare?
Have realistic expectations. Car glass coating cannot remove the glare from any headlights, streetlights or other sources of glare. It can also not correct scratches, chips, severe pitting or optical distortion on the damaged glass.
However, maintaining a clean, dry glass and minimizing water retention can help to minimize some of the visual disturbance from rain and surface contamination. Glare may be largely due to dirty or heavily contaminated glass; if so, then clean or maintain the glass properly and it’s likely to make a difference!
There’s a lot of soaking involved with any glass treatment. An oily residue, mineral deposits or other contaminants on the glass may influence the uniform adhesion of the coating.
The surface must be well cleaned and suitably prepared before applying. If the water spots or persistent contamination are present, they may need special glass decontamination. This preparation can be as crucial as the coating itself.
You wouldn’t want to overlook the current glass breakage
A coating is not used to fix broken glass. The scratches, chips, cracks and heavy pitting may still provide an obstacle to visibility even after a protective treatment is applied.
If the night-time glare has suddenly increased, check the windshield. In other cases, replacement of the windshield wipers or even the windshield and a cleaning of the inside of the windshield or repair of any damage to the glass may yield more improvement than a coating.
Conclusion
Car glass coating can help improve the windshield’s ability to see through when wet and dirty, and keep surfaces cleaner for easier, more frequent cleaning. But it should not be considered a solution to all night-driving sight problems. Functional wipers, undamaged glass and proper maintenance of the windshield glass continue to be critical. A high-quality coating can be part of a comprehensive windshield care program that keeps your windshield looking clear and helps to make difficult driving times easier to handle.