Study: Bird poop do not damage the car paint ... alone
You see how things are. We have always believed in our ignorance that the pigeon droppings should be cleaned as soon as possible to avoid their harmful corrosive effects on the body of our car, but you see where it appears that the excretions of the animals do not damage the paint itself alone.
A study by the British firm Autoglym cleaning products, reveals that the stool, regardless of pH, is only part of the problem. The real culprit is actually sunlight, which warms the car paint and causes them to dilate. While the painting expands, the bird poop is dehydrated, so that when it's dark and temperatures drop, painting contracts forms around the hardened creating gift.
This, and nothing else, would cause the damage to the cars commonly used as a toilet by birds. The solution would in any case the same: moving the rag as soon as possible. Or failing that, go to the laundry.
Do not lie without knowing a thing.
Source
A study by the British firm Autoglym cleaning products, reveals that the stool, regardless of pH, is only part of the problem. The real culprit is actually sunlight, which warms the car paint and causes them to dilate. While the painting expands, the bird poop is dehydrated, so that when it's dark and temperatures drop, painting contracts forms around the hardened creating gift.
This, and nothing else, would cause the damage to the cars commonly used as a toilet by birds. The solution would in any case the same: moving the rag as soon as possible. Or failing that, go to the laundry.
Do not lie without knowing a thing.
Source