my break bleaders are not leaking.Those are sealed with some kind of red product. It is dry. It appears to be something like the red Loc Tite. I see this same looking stuff on some of my electrical connector hardware. The little screws to close up the connector has red loc tite stuff. A call to Grove certainly didn't help in identifying the product. I notice that my brake fittings don't leak in static condition any more with the fuel lube but when I apply pressure and set the parking brake, that's when it leaks very slowly.