Dyl, if you are going to by anti-seize lube from an auto parts store tell them it is for spark plugs. That stuff is made to handle hot and dirty conditions - similar to a breech plug
Good call and it may even come in stick form or like a crayon. The copper based type that I get, is used for making up high temp. piping flange bolts. There is also a nickle based type that has a high temp rating but dries out too fast. As stated before, the copper coats the threads and keeps the crud from sticking to them. .....
Be Safe !!!