Story By : Navdeep Kumar
Indian doctor Navnath Dudhal coated his SUV car with cow dung to beat the heat. Doctor claims that cow dung keeps his car cool in the scorching Pune heat and helps in preventing pollution as the air conditioner is not used much. Three coats of cow dung have been applied over the car and it stays on the car for a month.
Sun radiations do not harm the car’s roof directly therefore, the temperature inside the car is 5-7 degree Celsius less than the outside temperature. The cow dung is removed by water and rubbing it with a cotton cloth. Cow dung stains do not stick to the car’s body and neither the car paint is affected. For some time, the smell of cow dung is felt inside the car, but after a while, no smell remains inside the car.
Docyor Navnath Dudhal is a senior doctor at Tata Cancer Hospital in Mumbai. He claims to have stumbled upon this idea as he regularly studies cow urine’s benefit for cancer patients. As of now, there has been no proven study or any other such verification which states that cow dung does help in keeping a car cool.Traditional mud houses in Indian villages get a cow dung coating regularly for keeping it cool in the summer. It is also said to have anti-fungal and anti-bacterial properties but its latest use on cars sounds a bit bizarre. Maybe, paint companies could conduct some tests and come out with new cow-dung paint to keep the heat down in cars. They could even provide different colour options to choose from. On a more serious note, the claim of cow dung making a vehicle cooler seems dubious. Technically speaking, the major factor in heating up a car’s interiors is the large glass area which acts as a greenhouse and traps sunlight/heat which enters inside.
What could be a possibility is that adding cow dung adds an extra layer of insulation to the car’s surface which could affect its temperature. However, nothing could be said for sure as of now. What we do know though is that layering our beloved car with cow dung is something which we’ll choose not to do, ever.