1 Gallon and 3 1/2 Gallon are Out of Stock, Bulk Orders available Contact us at sales@industrialstop.com BESTOLIFE Copper Joint (CJ) is a copper/lead-based compound for use on rotary-shouldered connections. CJ seals and protects threaded connections in high temperature and high pressure.  APPLICATIONS Premium drill collar and tool joint compound. Recommended for drill collars, tool joints, tubing, fishing tools, line pipe connections, flange connections, gaskets and seals. PRODUCT CHARACTERISTICS Color: Dark Copper Penetration: 300-320 (ASTM D 217) Weight/Gallon: 10.9 pounds/gallon Dropping Point: ≥350°F (≥177°C) Flash Point: ≥392°F (≥200°C) Brushable To: 10°F (-12°C) Friction Factor: 1.0 (per API RP 7A1) Contains: Copper, lead, graphite, and other non-metallic additives