Texas Lightsmith what kind of sink breaks dishes? Copper sinks are pretty unique in their care as they typically will have a living finish basin, check this link out for more information about what a living finish is and how to take care of it http://www.texaslightsmith.com/www/faq.php#faq13
Design Moe Kitchen & Bath / Heather Moe designer Sorry it has taken me so long to answer your question. As I mentioned in previous posts about this kitchen and others, the sink is by Masterpiece Sinks. We used Masterpiece because instead of a "live" (ie, changing) surface on their metal patina sinks, they have a "lifetime" finish that is guaranteed not to change for 10 years. Our experience with them so far has been up and down: up because the finishes generally seem to last, down because the quality of the construction seems somewhat mediocre (top edges of sinks has been dented and uneven at receipt) and the quality of the construction process has been spotty (we have twice received the wrong apron design after waiting 4 weeks for manufacture). In addition we have had one finish failure, in which the metal surface coating of the inside of the sink wore off around the drain. In that case Masterpiece replaced the sink promptly, but the "remove & replace" installation work was a considerable headache, and it cost me $400-$500 for labor.
Design Moe Kitchen & Bath / Heather Moe designer Hm mm, "I think it's Kohler?" Sorry, Sandy G, Kohler has nothing even close to this sink in their product line. Per my note several weeks ago, we purchased this sink from Masterpiece. You may also want to check out the copper sinks from Stone Forest; we've had good luck with them.
Texas Lightsmith The living finish for this type of situation is really your best option for such a high traffic appliance...the only other suitable cover is PVD which is made for machinery parts, while extremely durable there is a size limit to what you can coat with it. I am shocked that they say 10yrs on a sealed sink basin... what do they use to seal it? Have you been using their product for 10 years?