Although I haven't used Rub 'N' Buff for transmission casings, I have used it for many years to stain wrought iron drapery hardware as well as to antique items from picture frames to statuary. It is an incredibly good product and has such good coverage, it's hard to believe. We used to sell it in our stores when we had retail fabric/craft stores, and afterwards I had been buying at Michael's Crafts, but they no longer carry it. The other products that are supposedly like it are clearly not as good.
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