Can Warm Water Be Used to Wash Snow Off the Windshield?

[VonMaximus]

Warm water should not be used to wash snow off the windshield, as it may damage the car film. Precautions for defrosting the windshield: Apply some effective protective products on the windshield, such as soapy water, detergent, ethylene glycol, glycerin, or polyvinylpyrrolidone. Cover the windshield with a layer of plastic film, which will isolate the glass from direct contact with cold air, reducing the condensation of water vapor in the air on the glass and the formation of fine ice. Reasons for window icing: The temperature of the car glass is higher than the outside, melting the snowflakes that fall on the glass. After leaving the car, residual heat inside the vehicle keeps the glass temperature higher than the outside, melting the snowflakes on the glass. However, as the interior temperature gradually drops to match the outside temperature, the melted snow on the glass will freeze.