All of Eastwood's products that I have purchased have worked well and lived up to their claims. The Original Chasis Black goes on nice, looks good, but even after a couple of months now will still leave a black smudge if your hand, arm or whatever presses up against it. Light contact won't for the most part. But, the areas aren't as glossy especially after repeated contact. I'll be trying the new chassis blacks that they have next.