What to Use to Wipe Glass Without Fogging?
2 Answers
You can use dish soap or soapy water to wipe the glass to prevent fogging, because soapy water and dish soap contain surfactants that effectively prevent water vapor from condensing on the surface, thus acting as an anti-fogging agent. Mix dish soap and water in a ratio of approximately 1:10, then use a soft cloth to apply the prepared solution to the inside of the front and rear glass. Wiping it on and letting it dry will enhance the anti-fogging effect. Principle: The active molecules in dish soap can be divided into two parts—one end is a charged, polar hydrophilic group, and the other end is a non-polar hydrophobic group. The active molecules can disrupt the surface tension of water. When soap molecules enter the water, the polar hydrophilic part breaks the attraction between water molecules, reducing the surface tension of water. This allows water molecules to spread evenly on the treated glass surface, forming a water film that adheres to the glass. The more rainwater hits the glass, the larger the water film becomes, maintaining the glass at an extremely high level of clarity.
I remember a few years ago when I was driving long-distance, the windshield suddenly fogged up and I could barely see the road—I almost had an accident. Since then, I’ve learned my lesson. I’ve used some professional anti-fog sprays with good results, like alcohol-based brands that dry quickly with just a spray and wipe. But I don’t rely solely on these. After driving for a while, high humidity can easily cause fogging, so I make sure to keep the interior dry and clean, avoiding dust buildup. When using the AC, I lower the temperature and switch to dehumidify mode, directing the airflow toward the glass to quickly clear the fog. In summer, with more rain, windows fog up more frequently. I recommend cleaning the glass once a month with a damp cloth to remove dust, followed by anti-fog treatment. Remember, safety comes first—these habits can prevent major issues and ensure peace of mind every time you hit the road.
