I have been using Nu-Finish for years myself, with no issues. But, the new ceramic coatings are a different type of protectant, designed to bond with clear coat finishes and leave a layer impervious to soap, salt and other chemicals. I've read where that layer can actually crack if the surface it is put on moves.(as in expansion). IOWs, since Nu-Finish works, and works well, and is considerably less expensive than the new ceramic coatings, I'd be hesitant to run out an get a bottle just for my brass, especially without knowing if there are or are not any issues with it. Don't see how it could really give me anything more than Nu-Finish.....but I could be wrong.