I also do not advise that any sealant be used on *anything* other than Pipe Threads.
On brake line fittings I typically put one drop of light oil on the threads (being careful to not get any on the inside of the fitting where the brake fluid will come in contact). That little bit of oil will give you more clamping force per given amount of torque on the fitting.
On brake line fittings I typically put one drop of light oil on the threads (being careful to not get any on the inside of the fitting where the brake fluid will come in contact). That little bit of oil will give you more clamping force per given amount of torque on the fitting.