Why is it that a lot of Machine Made and Hand Tufted Wool rugs from India, have a burnt rubber smell to them? The smell is sometimes very strong and offensive. Often times customers will call back after their rug is delivered and ask about the smell. I'm pretty sure it has something to do with the materials they use in the backing of the rug. But I would like to know more about this so that I can educate my customers as well. And as far as I know its very difficult to overcome this odor. Is it possible to get rid of it?