Will Car Glass Crack When Pouring Cold Water on It in High Temperatures?
2 Answers
Car glass will not crack when pouring cold water on it in high temperatures. All car glass is tempered glass, which has an impact resistance 3 to 5 times that of ordinary glass and a bending strength 3 to 5 times that of ordinary glass. Additionally, it has excellent thermal stability, withstanding a temperature difference three times that of ordinary glass and able to endure temperature changes of up to 200°C. Below is an introduction to car glass maintenance: 1. Regularly inspect wiper blades: Use specialized or suitable wiper blades and replace them promptly to prevent scratching the windshield. 2. Keep the windshield clean: If debris is stuck, avoid using the wiper blades to remove it; instead, carefully remove it with a towel or other tools. 3. Use automotive-specific glass cleaner: This helps maintain clear visibility while increasing lubrication and reducing wear on the windshield.
Pouring cold water on car glass in high temperatures can indeed cause it to crack, mainly because the glass expands in hot weather. When suddenly exposed to cold water, the surface rapidly contracts while the interior cannot react in time, creating significant internal stress that leads to breakage. This phenomenon is particularly common in summer, especially when water is directly sprayed on the glass after the car has been parked in the sun. I’ve personally witnessed several instances where someone poured a bucket of cold water on the glass right after parking, causing it to crack. Repairing it is not only troublesome but also dangerous. To prevent this issue, try to park in shaded areas, such as garages or under trees, to avoid direct sunlight. If the glass is indeed very hot, I recommend gently wiping it with a damp cloth to cool it down instead of splashing water directly. This not only protects the glass but also extends its lifespan. Thermal shock under high temperatures is not just a risk for car glass; any glass products like windows and doors can also be affected.
