Well a chain collar is fine if you are only interested it stopping the dog from chewing the collar while he is wearing the chain collar. But if you want to teach a dog not to chew a collar? No matter what type of collar you have on them.
Then you really need to look into the collar that I...
I have designed and built a collar that you simply place on the dog, that uses a low voltage to detour your dog and other dogs from chewing on the collar. I tried all the anti chew sprays with no success. In my case I have 2 dogs together and one was always chewing the collar off of the other...