PREMIUM NONCONDUCTIVE THREAD COMPOUND Jet-Lube’s NCS-30 is specially effective for invert or high-pH muds. This nonmetallic compound blends carbon-based fibers and additives, and other natural extreme pressure and anti-wear additives with high-temp, calcium-complex base grease. NCS-30’s special formulation offers superior adhesion to wet steel, resistance to water wash-off and extended storage capability.