It Makes Scratches Vanish!

For all those people who believe in science this is a must read post. I always had great respect for scientists because they are the one who creates the New World with comfort. I always get fascinated with new researches and inventions. Recently I read an interesting topic, which I thought of sharing in this post. I am sure that it will be interesting. Scientists have developed a polyurethane coating that heals its own scratches when exposed to sunlight, offering the promise of scratch-free cars and other products. They have developed a polymeric material that is able to repair itself by exposure to the sun. In essence, you create a scratch and that scratch will disappear upon exposure to the sun. The self-healing coating uses chitosan, a substance found in the shells of crabs and shrimp.

When a scratch damages the chemical structure, the chitosan responds to ultraviolet light by forming chemical chains that begin bonding with other materials in the substance, eventually smoothing the scratch. The process can take less than an hour. The polymer can only repair itself in the same spot once, and would not work after repeated scratches. Obviously, this is one of the drawbacks but the chances are low of having two scratches in exactly the same spot.