In December of 2008, scientists in China developed a coating to put on aluminum foil that would protect it from water. It is a superhydrophobic coating. That means that it is very afraid of water, or that it acts like a raincoat. The superhydrophobic coating protects the foil from corrosion. It is not perfect yet, because the durability of the foil is lessened through the coating, but with time, they think they can work this out. The link can be found here.
This might seem like a pointless development, but when you are putting the foil in air conditioning units, they last longer and then save you money because you don’t need to replace your unit as often. Because it can be used under harsh conditions, it can be applied to many other things besides air conditioning units.
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