I love these tins and they are a big part of our business. We end of having to discard quite a bit of inventory because of the problem with the tins discoloring. I am in the process of trying to find and approved,nontoxic,nonflammable and effect coating to apply myself. This is hurting my business, as I have many white label customers who are not willing to not sell the certain fragrances which cause the discoloration which, by the way looks very much like rust. I've called CS a couple of times but it appears that their hands are tied as well. Hopefully my idea of re-coating tins work or CS comes up with something.