Need some teachin from the experts....I poked around for info, but didn't really find any definitive answers. Can anyone tell me what the proper sealant is to use on NPT fittings used in brake lines? I realize nothing on flare fittings other than possibly a small amount of anti seize on the threads and under the fitting behind the flare. I'm looking at sealing the threads on NPT fittings only and want a sealant that is compatible with brake fluid. I want to do this one time and get it right. Thanks guys!